Added GitHub workflow to prevent PR from merging when checks are running

Author: michalChrobot

.github/workflows/all-checks-pass.yml

@@ -0,0 +1,19 @@
+# Check based on https://github.com/marketplace/actions/allcheckspassed to prevent PRs from merging when there is no required checks but some jobs are running
+
+name: All checks pass verification
+on:
+  pull_request:
+    types: [ opened, synchronize, reopened, ready_for_review ]
+
+jobs:
+  allchecks:
+    runs-on: ubuntu-latest
+    permissions:
+      checks: read
+      contents: read
+    steps:
+      - uses: wechuli/allcheckspassed@v1
+        with:
+          delay: '1'
+          retries: '48'
+          polling_interval: '5'