chore(deps): bump actions/labeler from 4 to 5

Bumps [actions/labeler](https://github.com/actions/labeler) from 4 to 5.
- [Release notes](https://github.com/actions/labeler/releases)
- [Commits](actions/labeler@v4...v5)

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

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

.github/workflows/labeler.yml

@@ -8,6 +8,6 @@ jobs:
     if: github.repository == 'volantis-x/hexo-theme-volantis'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/labeler@v4
+      - uses: actions/labeler@v5
         with:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"