ci(hotfix): slash command permissions

Author: aaronsteers

.github/workflows/test-pr-command.yml

@@ -15,6 +15,12 @@ on:
 env:
   AIRBYTE_ANALYTICS_ID: ${{ vars.AIRBYTE_ANALYTICS_ID }}
 
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+  checks: write
+
 jobs:
   start-workflow:
     name: Append 'Starting' Comment