Upgrade the backport workflow (#487)

Signed-off-by: Ashish Agrawal <[email protected]>

Author: lezzago

.github/workflows/backport.yml

@@ -23,7 +23,9 @@ jobs:
           installation_id: 22958780
 
       - name: Backport
-        uses: VachaShah/backport@v1.1.4
+        uses: VachaShah/backport@v2.2.0
         with:
           github_token: ${{ steps.github_app_token.outputs.token }}
           branch_name: backport/backport-${{ github.event.number }}
+          labels_template: "<%= JSON.stringify([...labels, 'autocut']) %>"
+          failure_labels: "failed backport"