CI: Add sync-labels into labeler.yml workflow (#33699)

Co-authored-by: marker dao ® <youdontknow@marker-dao.eth>

Author: marker-dao

.github/workflows/labeler.yml

@@ -14,3 +14,4 @@ jobs:
       - uses: actions/labeler@v5
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
+          sync-labels: true