Restore concurrency

Author: timmo001

.github/workflows/ci.yaml

@@ -15,7 +15,7 @@ env:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: false
 
 permissions:
   contents: read