chore(checks): skip draft PRs (#43519)

* chore(checks): skip draft PRs for PR checks action

.github/workflows/pr-checks.yml

@@ -3,7 +3,9 @@ on:
   pull_request_target:
     types:
       - opened
+      - reopened
       - synchronize
+      - ready_for_review      
       - labeled
       - unlabeled
   issues:
@@ -14,6 +16,7 @@ on:
 jobs:
   main:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.draft == false
     steps:
       - name: Checkout Actions
         uses: actions/checkout@v2