build(deps): bump crazy-max/ghaction-github-labeler from 5 to 6

Bumps [crazy-max/ghaction-github-labeler](https://github.com/crazy-max/ghaction-github-labeler) from 5 to 6.
- [Release notes](https://github.com/crazy-max/ghaction-github-labeler/releases)
- [Commits](crazy-max/ghaction-github-labeler@v5...v6)

---
updated-dependencies:
- dependency-name: crazy-max/ghaction-github-labeler
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/maintenance-sync-labels.yml

@@ -27,7 +27,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Run Labeler
-        uses: crazy-max/ghaction-github-labeler@v5
+        uses: crazy-max/ghaction-github-labeler@v6
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           yaml-file: .github/labels.yml