fix: EntityDispatcher tests

Author: st0o0

src/TurboHTTP.Tests/Streams/Stages/Server/EntityDispatcherSpec.cs

@@ -62,6 +62,7 @@ private static TurboHttpContext CreateTestContext(
 
         var services = new ServiceCollection()
             .AddSingleton(registry)
+            .AddSingleton<IReadOnlyActorRegistry>(registry)
             .BuildServiceProvider();
 
         var turboTable = new TurboRouteTable();
@@ -108,6 +109,7 @@ public async Task Stage_should_return_202_for_tell_route()
 
         var services = new ServiceCollection()
             .AddSingleton(registry)
+            .AddSingleton<IReadOnlyActorRegistry>(registry)
             .BuildServiceProvider();
 
         var turboTable = new TurboRouteTable();
@@ -136,6 +138,7 @@ public async Task Stage_should_return_504_on_ask_timeout()
 
         var services = new ServiceCollection()
             .AddSingleton(registry)
+            .AddSingleton<IReadOnlyActorRegistry>(registry)
             .BuildServiceProvider();
 
         var turboTable = new TurboRouteTable();
@@ -164,6 +167,7 @@ public async Task Stage_should_return_500_when_no_response_mapper_found()
 
         var services = new ServiceCollection()
             .AddSingleton(registry)
+            .AddSingleton<IReadOnlyActorRegistry>(registry)
             .BuildServiceProvider();
 
         var turboTable = new TurboRouteTable();