Cancel previous runs automatically

Author: gabrielfeo

.github/workflows/sample-gradle-project.yml

@@ -3,6 +3,10 @@ name: sample-gradle-project
 on:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: true
+
 jobs:
 
   with-setup-gradle-and-setup-java: