fix(docker): improve docker tags to be cleared and avoid conflicts (#26787)

.github/workflows/superset-python-integrationtest.yml

@@ -8,6 +8,10 @@ on:
   pull_request:
     types: [synchronize, opened, reopened, ready_for_review]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   test-mysql:
     runs-on: ubuntu-20.04