chore: update actions/labeler action to v6

Author: renovate[bot]

.github/workflows/pr.yml

@@ -16,7 +16,7 @@ jobs:
   pr_title:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/labeler@ac9175f8a1f3625fd0d4fb234536d26811351594 # v4.3.0
+      - uses: actions/labeler@634933edcd8ababfe52f92936142cc22ac488b1b # v6.0.1
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
       - uses: amannn/action-semantic-pull-request@0723387faaf9b38adef4775cd42cfd5155ed6017 # v5.5.3