fix: remove preview on closed pr

Author: felixindrawan

.github/workflows/preview.yml

@@ -7,7 +7,10 @@ on:
   pull_request:
     types:
       - opened
-      - synchronize    
+      - reopened
+      - synchronize
+      - closed
+
 jobs:
   deploy-preview:
     runs-on: ubuntu-latest