Update run-tests.yaml (#2380)

Author: timcassell

.github/workflows/run-tests.yaml

@@ -6,7 +6,7 @@ on:
   push:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
   cancel-in-progress: true
 
 jobs: