Display current labels

Author: pquentin

.github/workflows/check-backport-labels.yml

@@ -16,5 +16,6 @@ jobs:
       - name: "Check backport label"
         if: "!contains(github.event.pull_request.labels.*.name, 'backport')"
         run: |
-          echo "Please apply a backport label, or "skip-backport" if not backport is needed"
+          echo "Please apply a backport label, or "skip-backport" if no backport is needed"
+          echo "Current labels: ${{ toJSON(github.event.pull_request.labels.*.name) }}"
           false