Fix duplicate workflow runs by using branch name in concurrency group

Author: scott grayson

.github/workflows/phpstan.yml

@@ -14,7 +14,7 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref_name }}
   cancel-in-progress: true
 
 jobs:

.github/workflows/test.yml

@@ -18,7 +18,7 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref_name }}
   cancel-in-progress: true
 
 jobs: