More trunk junk / remove old workflows (#6153)

.github/workflows/trunk_format_pr.yml

@@ -4,11 +4,15 @@ on:
   issue_comment:
     types: [created]
 
+permissions: read-all
+
 jobs:
   trunk-fmt:
     if: github.event.issue.pull_request != null && contains(github.event.comment.body, 'trunk fmt')
     runs-on: ubuntu-latest
-
+    permissions:
+      contents: write
+      pull-requests: write
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4