chore(ci): Add concurrency group to cancel old ci (#2202)

Author: tottoto

.github/workflows/CI.yml

@@ -7,6 +7,10 @@ on:
   merge_group:
     branches: [ "master" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   RUSTFLAGS: "-D warnings"