chore: change to trigger integration.yml automatically by pr only (#4)

Author: fecapark

.github/workflows/deploy-demo.yml

@@ -1,8 +1,7 @@
 name: Deploy Demo To Vercel
 
 # Todo:
-# - 1. fix running quality checking twice when push to main
-# - 2. cache pnpm install
+# - 1. cache pnpm install
 
 on:
   push:

.github/workflows/integration.yml

@@ -6,9 +6,6 @@ on:
     types: [synchronize, opened]
     branches:
       - main
-  push:
-    branches:
-      - main
 
 jobs:
   check-quality: