[improve][ci] Check ASF action allowlist and warn before expiration (#313)

Author: lhotari

.github/workflows/ci-pr-validation.yaml

@@ -32,6 +32,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: Check ASF action allowlist
+        uses: apache/infrastructure-actions/allowlist-check@main
+        with:
+          scan-glob: '.github/**/*.y*ml'
       - uses: actions/setup-python@v4
         with:
           python-version: 3.x