chore(deps): bump string-width from 4.1.0 to 4.2.0 (#4952)

Bumps [string-width](https://github.com/sindresorhus/string-width) from 4.1.0 to 4.2.0.
- [Release notes](https://github.com/sindresorhus/string-width/releases)
- [Commits](sindresorhus/string-width@v4.1.0...v4.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

packages/@aws-cdk/cloudformation-diff/package.json

@@ -32,7 +32,7 @@
     "diff": "^4.0.1",
     "fast-deep-equal": "^2.0.1",
     "source-map-support": "^0.5.16",
-    "string-width": "^4.1.0",
+    "string-width": "^4.2.0",
     "table": "^5.4.6"
   },
   "devDependencies": {