Action trigger fix (#2180)

Maintenance PR unrelated with module itself
Modified action trigger to cover branch change

.github/workflows/check_pr_source.yml

@@ -2,6 +2,7 @@ name: Enforce test-staging → master
 
 on:
   pull_request:
+    types: [opened, synchronize, reopened, edited]
     branches:
       - master
       - test-staging