change cron

.github/workflows/cron.yml

@@ -1,15 +1,15 @@
 name: Daily Leaderboard Update
 
 on:
-  workflow_dispatch: {}
+  workflow_dispatch:
   schedule:
     - cron: "0 0 * * *"
 
 jobs:
   update_leaderboard:
     runs-on: ubuntu-latest
     permissions:
-      contents: write
+      contents: read, write
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3