Apply suggestions from code review

Author: NataliaIvakina

.github/workflows/auto-backport.yml

@@ -10,9 +10,7 @@ jobs:
     if: |
       github.event.pull_request.merged == true
       && contains(github.event.pull_request.labels.*.name, 'auto-cherry-pick')
-      && (
-        (github.event.action == 'labeled' && github.event.label.name == 'auto-cherry-pick')
-        || (github.event.action == 'closed')
+      && github.event.action == 'closed'
       )
     steps:
       - name: Cherry-pick action