ci: Check every day to see if there are any missing documents.

Author: Chasen-Zhang

.github/workflows/docs-sync.translate.yaml

@@ -1,6 +1,9 @@
 name: GPT Translate Sync
 
-on: workflow_dispatch
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 16 * * *'
 
 permissions:
   id-token: write