Merge pull request #5 from matter-labs/set-cancel-in-progress-true

ci: Set cancel in progress and concurency limit

.github/workflows/ci.yaml

@@ -2,6 +2,10 @@ name: "Rust CI"
 on:
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     name: cargo build