ci: fix canary backend auto release job (#6121)

.github/workflows/deploy-automatically.yml

@@ -7,6 +7,11 @@ on:
   schedule:
     - cron: '0 9 * * *'
 
+permissions:
+  contents: write
+  pull-requests: write
+  actions: write
+
 jobs:
   dispatch-deploy:
     runs-on: ubuntu-latest