ci(version-check): run only for PRs targeting main

Author: deeleeramone

.github/workflows/version-bump-check.yml

@@ -4,14 +4,14 @@ on:
   pull_request:
     branches:
       - main
-  workflow_dispatch:
 
 permissions:
   contents: read
 
 jobs:
   version-bump-required:
     name: Version Bump Required
+    if: github.event_name == 'pull_request' && github.base_ref == 'main'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository