Fix build

Author: javiercn

src/Components/Server/src/DependencyInjection/IServerSideBlazorBuilder.cs

@@ -1,12 +1,14 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using Microsoft.AspNetCore.Components.Endpoints;
+
 namespace Microsoft.Extensions.DependencyInjection;
 
 /// <summary>
 /// A builder that can be used to configure Server-Side Blazor.
 /// </summary>
-public interface IServerSideBlazorBuilder
+public interface IServerSideBlazorBuilder : IRazorComponentsBuilder
 {
     /// <summary>
     /// Gets the <see cref="IServiceCollection"/>.