Add PrCleanup action

Author: Seppli11

.github/workflows/PrCleanup.yml

@@ -0,0 +1,13 @@
+name: Cleanup PR Resources
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  cleanup:
+    runs-on: github-ubuntu-latest-s
+    permissions:
+      actions: write
+    steps:
+      - uses: SonarSource/ci-github-actions/pr_cleanup@v1