Update src/ModelContextProtocol.AspNetCore/Auth/McpAuthorizationExtensions.cs

Co-authored-by: Stephen Halter <halter73@gmail.com>

Author: localden

src/ModelContextProtocol.AspNetCore/Auth/McpAuthorizationExtensions.cs

@@ -1,7 +1,7 @@
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 
-namespace ModelContextProtocol.AspNetCore.Auth;
+namespace Microsoft.Extensions.DependencyInjection;
 
 /// <summary>
 /// Extension methods for adding MCP authorization support to ASP.NET Core applications.