Add concurrency to workflows

Author: socheatsok78

.github/workflows/flutter-linux.yml

@@ -9,7 +9,11 @@ on:
     # https://crontab.guru/#40_10_*_*_*
     - cron: '40 10 * * *'
   workflow_dispatch:
-  
+
+concurrency:
+  group: ${{ github.workflow.name }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     uses: ./.github/workflows/flutter.yml

.github/workflows/flutter-macos-intel.yml

@@ -9,7 +9,11 @@ on:
     # https://crontab.guru/#40_10_*_*_*
     - cron: '40 10 * * *'
   workflow_dispatch:
-  
+
+concurrency:
+  group: ${{ github.workflow.name }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     uses: ./.github/workflows/flutter.yml

.github/workflows/flutter-macos.yml

@@ -9,7 +9,11 @@ on:
     # https://crontab.guru/#40_10_*_*_*
     - cron: '40 10 * * *'
   workflow_dispatch:
-  
+
+concurrency:
+  group: ${{ github.workflow.name }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     uses: ./.github/workflows/flutter.yml

.github/workflows/flutter-windows.yml

@@ -9,7 +9,11 @@ on:
     # https://crontab.guru/#40_10_*_*_*
     - cron: '40 10 * * *'
   workflow_dispatch:
-  
+
+concurrency:
+  group: ${{ github.workflow.name }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     uses: ./.github/workflows/flutter.yml