update workflows/sync2gitee.yml

.github/workflows/sync2gitee.yml

@@ -3,9 +3,9 @@ name: Mirror GitHub to Gitee
 on:
   # Triggers the workflow on push or pull request events but only for the main branch
   push:
-    branches: [ main ]
+    branches: [ master ]
   pull_request:
-    branches: [ main ]
+    branches: [ master ]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch: