Bump eslint from 9.28.0 to 9.29.0 in /src/Elastic.Documentation.Site (#1378)

Bumps [eslint](https://github.com/eslint/eslint) from 9.28.0 to 9.29.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](eslint/eslint@v9.28.0...v9.29.0)

---
updated-dependencies:
- dependency-name: eslint
  dependency-version: 9.29.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Elastic.Documentation.Site/package-lock.json

@@ -36,7 +36,7 @@
     "@r2wc/react-to-web-component": "^2.0.4",
     "@tailwindcss/postcss": "4.1.10",
     "@trivago/prettier-plugin-sort-imports": "5.2.2",
-    "eslint": "9.28.0",
+    "eslint": "9.29.0",
     "globals": "16.2.0",
     "moment": "^2.30.1",
     "parcel": "2.15.2",