only run this workflow when merging a bump version PR

Author: nicecui

.github/workflows/version-tag-and-release-notes.yml

@@ -1,11 +1,10 @@
 name: Version Tag and Release Notes
 
 on:
-  push:
+  pull_request:
+    types: [closed]
     branches:
       - main
-    paths:
-      - 'versions.json'
 
   workflow_dispatch:
     inputs:
@@ -17,6 +16,7 @@ on:
 jobs:
   create-tag-and-release:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true && startsWith(github.event.pull_request.title, 'chore: bump version')
     steps:
       - name: Checkout code
         uses: actions/checkout@v4