Port github.ref_name to smoke.yml (#553)

Author: 0x2b3bfa0

.github/workflows/smoke.yml

@@ -7,7 +7,7 @@ on:
   schedule:
   - cron: '0 9 * * 1'
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  group: ${{ github.workflow }}-${{ github.ref_name }}
   cancel-in-progress: true
 jobs:
   authorize: