Reduce frequency of auto update

Author: rk0cc

.github/workflows/autodl.yml

@@ -1,7 +1,7 @@
 name: Auto download colour backup data
 on:
   schedule:
-    - cron: 0 10 15 1,4,7,10 *
+    - cron: 0 10 15 1,7 *
   workflow_dispatch: 
 jobs:
   download:
@@ -30,4 +30,4 @@ jobs:
         uses: ad-m/github-push-action@master
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
-          branch: main
+          branch: main