Revert "Dotnet Windows EKS on One Region"

This reverts commit fc38a5b.

Author: XinRanZhAWS

.github/workflows/dotnet-eks-canary.yml

@@ -11,12 +11,11 @@ on:
     - cron: '*/15 * * * *' # run the workflow every 15 minutes
   workflow_dispatch: # be able to run the workflow on demand
   push:
-    branches:
-      - "dotnet-windows-eks"
+    "dotnet-windows-eks"
 
-#concurrency:
-#  group: ${{ github.workflow }}
-#  cancel-in-progress: false
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: false
 
 permissions:
   id-token: write