Fix CI workflow concurrency group (#50)

Author: Kesin11

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ permissions:
   pull-requests: write
 
 concurrency:
-  group: ${{ github.ref }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 jobs: