tbh I don't know github actions as well as I do gitlab ci

Author: drickett

.github/workflows/python.yml

@@ -3,7 +3,8 @@ name: test
 on:
   push:
     branches: [main, master]
-  pull_request: true
+  pull_request:
+    branches: [main, master]
 
 concurrency:
   group: test-${{ github.head_ref }}