Upgrade GitHub Actions and nodejs to latest versions (#820)

* Initial plan

* Upgrade all GitHub Actions to latest versions in github-test.yaml

Co-authored-by: mikeharder <9459391+mikeharder@users.noreply.github.com>

* Upgrade GitHub Actions to latest versions in staging-lint-checks.yaml and test.yaml

Co-authored-by: mikeharder <9459391+mikeharder@users.noreply.github.com>

* Update test.yaml matrix to match github-test.yaml pattern

Co-authored-by: mikeharder <9459391+mikeharder@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: mikeharder <9459391+mikeharder@users.noreply.github.com>
Co-authored-by: Mike Harder <mharder@microsoft.com>

Author: Copilot

.github/workflows/github-test.yaml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           sparse-checkout: |
             .github
@@ -42,21 +42,21 @@ jobs:
 
       - if: ${{ matrix.os == 'ubuntu'}}
         name: Lint workflows
-        uses: docker://rhysd/actionlint:1.7.8
+        uses: docker://rhysd/actionlint:1.7.10
         with:
           args: -color -verbose
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
-          # actions/github-script@v7 uses Node 20
-          node-version: 20.x
+          # actions/github-script@v8 uses Node 24
+          node-version: 24.x
 
       - name: Install runtime deps
         run: npm ci --omit dev
 
       - name: Verify all modules are importable
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const { join } = await import("path");
@@ -75,7 +75,7 @@ jobs:
       - run: npm run test:ci
 
       - name: Archive code coverage results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: code-coverage-report-${{ matrix.os }}
           path: ./.github/coverage

.github/workflows/staging-lint-checks.yaml

@@ -28,15 +28,15 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout validator repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
-          node-version: 22
+          node-version: 24
 
       - name: Checkout specs repository (sparse - only needed RPs)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ env.SPEC_REPO }}
           path: ${{ env.SPEC_CHECKOUT_PATH }}
@@ -62,15 +62,15 @@ jobs:
         working-directory: .github
 
       - name: Extract rules and run AutoRest validation
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const { runInGitHubActions } = await import('${{ github.workspace }}/.github/workflows/src/extract-rule-names-and-run-validation.js');
             await runInGitHubActions({ context, core });
 
       - name: Upload findings artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: linter-findings
           path: artifacts/linter-findings.txt

.github/workflows/test.yaml

@@ -10,21 +10,21 @@ jobs:
   test:
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest]
-        node-version: [20, 22]
+        os: [ubuntu, windows]
+        node-version: [20, 24]
         exclude:
-          - os: ubuntu-latest
-            node-version: 22
-          - os: windows-latest
+          - os: ubuntu
+            node-version: 24
+          - os: windows
             node-version: 20
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ fromJSON('{"ubuntu":"ubuntu-24.04", "windows":"windows-2022"}')[matrix.os] }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Use Node ${{ matrix.node-version }}.x
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}.x