chore(deps): bump actions/labeler from 5 to 6

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

---
updated-dependencies:
- dependency-name: actions/labeler
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/labeling.yml

@@ -85,7 +85,7 @@ jobs:
       # Apply file/branch-based labels using labeler.yml (for PRs)
       - name: File/branch labeler (actions/labeler)
         if: github.event_name == 'pull_request'
-        uses: actions/labeler@v5
+        uses: actions/labeler@v6
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           configuration-path: ${{ env.LABELER_RULES }}