Cancel running workflows automatically on PR update (#31044)

* Cancel running workflows automatically on PR update
* Add the last update later to check cancellation is working
* Use github.run_number instead of github.sha

.github/workflows/build-containers.yml

@@ -19,6 +19,10 @@ on:
   release:
     types: [published]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_number }}
+  cancel-in-progress: true
+
 jobs:
   deploy-images:
     runs-on: ubuntu-latest