concurrency cancel

.github/workflows/check.yaml

@@ -4,15 +4,14 @@ on:
   push:
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     name: Build
     runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        node-version: [18.x, 20.x]
-
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4