Add ResourceGraph provisioning emitter config (#44354)

* Add ResourceGraph provisioning emitter config

* Fix ResourceGraph provisioning output path

Author: ArcturusZhang

specification/resourcegraph/resource-manager/Microsoft.ResourceGraph/ResourceGraph/tspconfig.yaml

@@ -14,6 +14,10 @@ options:
   "@azure-typespec/http-client-csharp-mgmt":
     namespace: Azure.ResourceManager.ResourceGraph
     emitter-output-dir: "{output-dir}/{service-dir}/{namespace}"
+  "@azure-typespec/http-client-csharp-provisioning":
+    namespace: Azure.Provisioning.ResourceGraph
+    emitter-output-dir: "{output-dir}/{service-dir}/{namespace}"
+    api-version: "2024-04-01"
   "@azure-tools/typespec-java":
     emitter-output-dir: "{output-dir}/{service-dir}/azure-resourcemanager-resourcegraph"
     namespace: "com.azure.resourcemanager.resourcegraph"