fix: prevent hotfix PR version drift

Author: Foscat

.github/workflows/sync-package-version-with-main.yml

@@ -1,14 +1,8 @@
 name: Sync Package Version With Main
 
 on:
-  pull_request:
-    branches:
-      - main
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
+  # Release and hotfix branches intentionally carry versions that can differ
+  # from main, so this workflow must stay opt-in instead of mutating PR heads.
   workflow_dispatch:
 
 permissions:
@@ -17,7 +11,6 @@ permissions:
 jobs:
   sync-package-version:
     if: >
-      (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository) &&
       !startsWith(github.head_ref || github.ref_name, 'release/')
     runs-on: ubuntu-latest
     steps: