fix: disable PR edited trigger for step4b

Author: FidelusAleksander

.github/workflows/4b-copilot-on-github.yml

@@ -2,11 +2,12 @@ name: Step 4b # Copilot on GitHub
 
 on:
   # Trigger if PR Description is edited
-  pull_request:
-    branches:
-      - main
-    types:
-      - edited
+  # Disabled because PR summaries are not available for free accounts
+  # pull_request:
+  #   branches:
+  #     - main
+  #   types:
+  #     - edited
 
   # Trigger if Copilot adds a review comment
   pull_request_review: