ci: add daily rebuild

Author: viceice

.github/workflows/build.yml

@@ -7,6 +7,9 @@ on:
       - 'renovate/**'
 
   pull_request:
+  
+  schedule:
+    - cron: '0 1 * * *'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.number || github.ref }}