Update docker-publish.yml

Disable concurrency of multiple image builders

Author: Japsert123

.github/workflows/docker-publish.yml

@@ -21,6 +21,10 @@ env:
   # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}
 
+  
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   build: