Add empty permissions block to trigger-deploy workflow

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

.github/workflows/trigger-deploy.yml

@@ -4,6 +4,8 @@ on:
   push:
     branches: [master]
 
+permissions: {}
+
 jobs:
   trigger:
     runs-on: ubuntu-latest