Update branch names for check-for-conflicts.yml job

.github/workflows/check-for-conflicts.yml

@@ -4,7 +4,7 @@ name: Check for conflicts
 
 on:
   pull_request:
-    branches: [main, v1, v2]
+    branches: [main, releases/v1, releases/v2]
     # Run checks on reopened draft PRs to support triggering PR checks on draft PRs that were opened
     # by other workflows.
     types: [opened, synchronize, reopened, ready_for_review]