fix(ci): make commitlint-autofix workflow more robust

- Add fallback to concurrency group for when workflow_run context is unavailable
- Add explicit github.event_name check to job condition
- This fixes the "workflow file issue" errors that were occurring

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: franklinic

.github/workflows/commitlint-autofix.yml

@@ -6,7 +6,7 @@ on:
     types: [completed]
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event.workflow_run.head_branch }}
+  group: ${{ github.workflow }}-${{ github.event.workflow_run.head_branch || github.ref }}
   cancel-in-progress: true
 
 permissions:
@@ -16,7 +16,9 @@ permissions:
 jobs:
   auto-fix-commits:
     name: Squash and Fix Commit Messages
-    if: |
+    # Only run when commitlint fails on a pull_request event
+    if: >-
+      github.event_name == 'workflow_run' &&
       github.event.workflow_run.conclusion == 'failure' &&
       github.event.workflow_run.event == 'pull_request'
     runs-on: ubuntu-latest