Fix CI workflow: Update branch triggers from main to master

- Changed workflow triggers from 'main' to 'master' branch
- This ensures CI runs on the correct branch after initial push
- Workflow will now trigger on pushes and PRs to master branch

Author: mabualzait

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [ main, develop ]
+    branches: [ master, develop ]
   pull_request:
-    branches: [ main, develop ]
+    branches: [ master, develop ]
 
 jobs:
   test: