ci(ci): add concurrency config (#253)

Author: Fdawgs

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ on:
 
 # This allows a subsequently queued workflow run to interrupt previous runs
 concurrency:
-  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
+  group: "${{ github.workflow }}-${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
   cancel-in-progress: true
 
 permissions: