revert

.github/workflows/selfdrive_tests.yaml

@@ -7,9 +7,9 @@ on:
   pull_request:
   workflow_dispatch:
 
-#concurrency:
-#  group: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && github.run_id || github.head_ref || github.ref }}-${{ github.workflow }}-${{ github.event_name }}
-#  cancel-in-progress: true
+concurrency:
+  group: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && github.run_id || github.head_ref || github.ref }}-${{ github.workflow }}-${{ github.event_name }}
+  cancel-in-progress: true
 
 env:
   PYTHONWARNINGS: error
@@ -339,7 +339,7 @@ jobs:
   car_docs_diff:
     name: PR comments
     runs-on: ubuntu-20.04
-    if: github.event_name == 'never'
+    if: github.event_name == 'pull_request'
     steps:
       - uses: actions/checkout@v4
         with: