Upgrade Grunt devDependency to v1.6.2 (#552)

This updates the repository’s Grunt version to the latest requested
release (`v1.6.2`). The change is intentionally minimal and scoped to
dependency metadata only.

- **Dependency update**
- Bumped root `devDependencies.grunt` from `^1.5.3` to `^1.6.2` in
`package.json`.

- **Scope**
  - No task definitions, build scripts, or source files were modified.
  - No additional dependencies were introduced.

```json
{
  "devDependencies": {
    "grunt": "^1.6.2"
  }
}
```

> [!WARNING]
>
> <details>
> <summary>Firewall rules blocked me from connecting to one or more
addresses (expand for details)</summary>
>
> #### I tried to connect to the following addresses, but was blocked by
firewall rules:
>
> - `accounts.google.com`
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=5794
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-23385640 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,8698451575539228256,4791516639961043639,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,13656834229840141413,17608725067332104193,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - Triggering command:
`/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
--user-data-dir=/tmp/karma-23385640 --enable-automation
--no-default-browser-check --no-first-run --disable-default-apps
--disable-popup-blocking --disable-translate
--disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing
--disable-device-discovery-notifications --no-sandbox --disable-gpu
--disable-web-security --disable-dev-shm-usage
http://localhost:9876/?id=23385640 --headless --disable-gpu
--disable-dev-shm-usage --remote-debugging-port=9222` (dns block)
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=6006
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-85768543 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,10530826015417496740,6869536657558125315,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,1450497968271292345,17647729281163990483,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - `clients2.google.com`
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=5794
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-23385640 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,8698451575539228256,4791516639961043639,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,13656834229840141413,17608725067332104193,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - Triggering command:
`/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
--user-data-dir=/tmp/karma-23385640 --enable-automation
--no-default-browser-check --no-first-run --disable-default-apps
--disable-popup-blocking --disable-translate
--disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing
--disable-device-discovery-notifications --no-sandbox --disable-gpu
--disable-web-security --disable-dev-shm-usage
http://localhost:9876/?id=23385640 --headless --disable-gpu
--disable-dev-shm-usage --remote-debugging-port=9222` (dns block)
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=6006
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-85768543 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,10530826015417496740,6869536657558125315,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,1450497968271292345,17647729281163990483,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - `redirector.gvt1.com`
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=5794
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-23385640 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,8698451575539228256,4791516639961043639,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,13656834229840141413,17608725067332104193,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - Triggering command:
`/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
--user-data-dir=/tmp/karma-23385640 --enable-automation
--no-default-browser-check --no-first-run --disable-default-apps
--disable-popup-blocking --disable-translate
--disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing
--disable-device-discovery-notifications --no-sandbox --disable-gpu
--disable-web-security --disable-dev-shm-usage
http://localhost:9876/?id=23385640 --headless --disable-gpu
--disable-dev-shm-usage --remote-debugging-port=9222` (dns block)
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=6006
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-85768543 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,10530826015417496740,6869536657558125315,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,1450497968271292345,17647729281163990483,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - `www.google.com`
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=5794
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-23385640 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,8698451575539228256,4791516639961043639,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,13656834229840141413,17608725067332104193,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - Triggering command:
`/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
/home/REDACTED/.cache/puppeteer/chrome/linux-148.0.7778.97/chrome-linux64/chrome
--user-data-dir=/tmp/karma-23385640 --enable-automation
--no-default-browser-check --no-first-run --disable-default-apps
--disable-popup-blocking --disable-translate
--disable-REDACTED-timer-throttling --disable-renderer-REDACTEDing
--disable-device-discovery-notifications --no-sandbox --disable-gpu
--disable-web-security --disable-dev-shm-usage
http://localhost:9876/?id=23385640 --headless --disable-gpu
--disable-dev-shm-usage --remote-debugging-port=9222` (dns block)
> - Triggering command: `/proc/self/exe /proc/self/exe --type=utility
--utility-sub-type=network.mojom.NetworkService --lang=en-US
--service-sandbox-type=network --no-sandbox --disable-dev-shm-usage
--use-angle=swiftshader-webgl --crashpad-handler-pid=6006
--enable-crash-reporter=, --noerrdialogs
--user-data-dir=/tmp/karma-85768543 --change-stack-guard-on-fork=enable
--shared-files=network_parent_dirs_pipe:100,v8_context_snapshot_data:101
--field-trial-handle=3,i,10530826015417496740,6869536657558125315,262144
--disable-features=PaintHolding --variations-seed-version
--pseudonymization-salt-handle=7,i,1450497968271292345,17647729281163990483,4
--trace-process-track-uuid=3190708989122997041` (dns block)
> - `www.googleapis.com`
> - Triggering command:
`/home/REDACTED/work/_temp/ghcca-node/node/bin/node node install.js`
(dns block)
>
> If you need me to access, download, or install something from one of
these locations, you can either:
>
> - Configure [Actions setup
steps](https://gh.io/copilot/actions-setup-steps) to set up my
environment, which run before the firewall is enabled
> - Add the appropriate URLs or hosts to the custom allowlist in this
repository's [Copilot coding agent
settings](https://github.com/nevware21/ts-utils/settings/copilot/coding_agent)
(admins only)
>
> </details>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: nev21 <82737406+nev21@users.noreply.github.com>

Author: Copilot

package.json

@@ -238,7 +238,7 @@
         "eslint-formatter-codeframe": "^7.32.1",
         "eslint-plugin-security": "^1.5.0",
         "glob": "13.0.6",
-        "grunt": "^1.5.3",
+        "grunt": "^1.6.2",
         "grunt-cli": "^1.4.3",
         "karma": "^6.4.3",
         "karma-chrome-launcher": "^3.2.0",