Update main.yml

Author: yangdongsuk

.github/workflows/main.yml

@@ -1,9 +1,10 @@
 name: CI/CD Docker
 
 on:
-  push:
+  pull_request:
+    types: [closed]
     branches:
-      - 'client/release/*'
+      - 'server/release/*'
 
 env:
   DOCKER_IMAGE: ghcr.io/${{ github.actor }}/nest-openlist-deploy