chore: add concurrency settings to GitHub Actions workflow

Author: c-c-epr

.github/workflows/check.yaml

@@ -7,6 +7,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 defaults:
   run:
     shell: bash --noprofile --norc -euo pipefail {0}