Add concurrency limit to smoke tests (#417)

Author: 0x2b3bfa0

.github/workflows/smoke.yml

@@ -6,9 +6,14 @@ on:
     paths: 'task/**'
   schedule:
   - cron: '0 9 * * 1'
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
 jobs:
   authorize:
-    environment: ${{ github.event_name == 'schedule' && 'automatic' || 'manual' }}
+    environment: ${{ (github.event_name == 'pull_request_target' &&
+      github.event.pull_request.head.repo.full_name != github.repository) &&
+      'manual' || 'automatic' }}
     runs-on: ubuntu-latest
     steps:
       - run: echo ✓
@@ -21,6 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         provider: [AWS, AZ, GCP]
+    concurrency: ${{ github.workflow }}-${{ matrix.provider }}
     env:
       AZURE_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }}
       AZURE_CLIENT_SECRET: ${{ secrets.AZURE_CLIENT_SECRET }}
@@ -55,6 +61,7 @@ jobs:
     environment: automatic
     runs-on: ubuntu-latest
     timeout-minutes: 30
+    concurrency: ${{ github.workflow }}-K8S
     env:
       AZURE_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }}
       AZURE_CLIENT_SECRET: ${{ secrets.AZURE_CLIENT_SECRET }}