(AzureCXP) fixes MicrosoftDocs/azure-docs#106726

We made changes in line no:46, 47

From
Microsoft.Azure.Management.EventHub
To:
Azure.ResourceManager.EventHubs

Author: Naveenommi-MSFT

articles/event-hubs/event-hubs-management-libraries.md

@@ -43,8 +43,8 @@ namespace event_hub_dotnet_management
 {
 	using System;
 	using System.Threading.Tasks;
-	using Microsoft.Azure.Management.EventHub;
-	using Microsoft.Azure.Management.EventHub.Models;
+	using Microsoft.Azure.ResourceManager.EventHubs;
+	using Microsoft.Azure.ResourceManager.EventHubs.Models;
 	using Microsoft.Identity.Client;
 	using Microsoft.Rest;