updated chart-sync workflow (#1679)

Author: pawan-59

.github/workflows/chart-sync.yaml

@@ -3,24 +3,27 @@ name: chart-sync
 # Controls when the workflow will run
 on:
   # Triggers the workflow on publishing new release
-  release:
-    types: [released]
-
+  pull_request:
+    types:
+      - closed
+    branches:    
+      - 'main'
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   # This workflow contains a single job called "build"
   sync:
+    if: github.head_ref == 'release-bot' && github.event.pull_request.merged == true
     # The type of runner that the job will run on
     runs-on: ubuntu-latest
     name: chart-sync
     steps:
     - uses: actions/checkout@v2
       with:
         fetch-depth: 0
-    - uses: devtron-labs/git-repo-sync@v0.1.9
+    - uses: devtron-labs/git-repo-sync@master
       with:
         script-file: ${{ secrets.CHART_SYNC_SCRIPT_FILE }}
         git-target-repo: ${{ secrets.GIT_TARGET_REPO }}