ci: cancel previous in-progress run on new push

Author: ASDAlexey

.github/workflows/ci.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   quality:
     runs-on: ubuntu-latest