add dry-run concurrency

Author: DaviPtrs

.github/workflows/dry-run-build.yml

@@ -6,6 +6,10 @@ on:
       - main
       - dev
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubicloud-standard-2