Bump actions/labeler from 5 to 6 (#55)

Bumps [actions/labeler](https://github.com/actions/labeler) from 5 to 6.
- [Release notes](https://github.com/actions/labeler/releases)
- [Commits](https://github.com/actions/labeler/compare/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] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/callable-labeler.yaml

@@ -81,7 +81,7 @@ jobs:
                     - '**/*.test.ts'
                     - '**/*_test.py'
           EOF
-      - uses: actions/labeler@v5
+      - uses: actions/labeler@v6
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           configuration-path: ${{ runner.temp }}/labeler.yml