Update .github/workflows/ci.yml

Co-authored-by: amazon-q-developer[bot] <208079219+amazon-q-developer[bot]@users.noreply.github.com>

Author: kyhau

.github/workflows/ci.yml

@@ -21,8 +21,8 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: ${{ github.workflow }}
-  cancel-in-progress: false
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 defaults:
   run: