feat: cancel previous workflow runs on new commits (#1184)

.github/workflows/test.yml

@@ -5,6 +5,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   linter:
     name: Linters