Merge pull request #2001 from Homebrew/cancel-in-progress

Author: Rylan12

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ on:
 
 concurrency:
   group: scheduled-${{ github.ref }}-${{ github.event_name }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   generate-cask: