feature(ci): cancel previous runs if in-progress

.github/workflows/container_test.yml

@@ -5,6 +5,10 @@ on:
   pull_request:
   workflow_dispatch: []
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   build-test:
     runs-on: [ubuntu-latest]

.github/workflows/go.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
     branches: [ master ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
 
   build:

.github/workflows/release_test.yml

@@ -5,6 +5,10 @@ on:
   pull_request:
   workflow_dispatch: []
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
 
   build: