ci: bump peaceiris/actions-label-commenter from v1.5.0 to v1.6.0 (#434)

Bumps [peaceiris/actions-label-commenter](https://github.com/peaceiris/actions-label-commenter) from v1.5.0 to v1.6.0.
- [Release notes](https://github.com/peaceiris/actions-label-commenter/releases)
- [Changelog](https://github.com/peaceiris/actions-label-commenter/blob/master/CHANGELOG.md)
- [Commits](https://github.com/peaceiris/actions-label-commenter/compare/v1.5.0...b88ea7324c745a7d07b3b236d0d57edecc31358c)

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

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

.github/workflows/label-commenter.yml

@@ -19,7 +19,7 @@ jobs:
           ref: main
 
       - name: Label Commenter
-        uses: peaceiris/actions-label-commenter@v1.5.0
+        uses: peaceiris/actions-label-commenter@v1.6.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           # config_file: .github/label-commenter-config.yml