chore: don't run the python builds too many times

Author: barjin

.github/workflows/python-test.yaml

@@ -29,6 +29,10 @@ on:
         type: string
         default: ''
 
+concurrency: 
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read