.github: Bump actions/labeler from 4.0.2 to 5.0.0

Bumps [actions/labeler](https://github.com/actions/labeler) from 4.0.2 to 5.0.0.
- [Release notes](https://github.com/actions/labeler/releases)
- [Commits](actions/labeler@5c75392...8558fd7)

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

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

.github/workflows/pr-triage.yml

@@ -9,7 +9,7 @@ jobs:
     steps:
       - name: Assign labels based on modified files
         # https://github.com/marketplace/actions/labeler?version=v4.0.2
-        uses: actions/labeler@5c7539237e04b714afd8ad9b4aed733815b9fab4
+        uses: actions/labeler@8558fd74291d67161a8a78ce36a881fa63b766a9
         with:
           sync-labels: ''
           repo-token: "${{ secrets.GITHUB_TOKEN }}"