fix: set clusterGroupName to baremetal for deployment testing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: butler54

values-global.yaml

@@ -26,7 +26,7 @@ main:
   # WARNING
   # This default configuration uses a single cluster on azure.
   # It fundamentally violates the separation of duties.
-  clusterGroupName: simple
+  clusterGroupName: baremetal
   multiSourceConfig:
     enabled: true
     clusterGroupChartVersion: 0.9.*