.github: Bump actions/labeler from 4.0.2 to 6.0.1

Bumps [actions/labeler](https://github.com/actions/labeler) from 4.0.2 to 6.0.1.
- [Release notes](https://github.com/actions/labeler/releases)
- [Commits](actions/labeler@5c75392...634933e)

---
updated-dependencies:
- dependency-name: actions/labeler
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.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@634933edcd8ababfe52f92936142cc22ac488b1b
         with:
           sync-labels: ''
           repo-token: "${{ secrets.GITHUB_TOKEN }}"