Use the correct middleware in the UseTimeout extension method (#7136)

Author: glen-84

src/HotChocolate/Core/src/Execution/DependencyInjection/RequestExecutorBuilderExtensions.UseRequest.cs

@@ -100,7 +100,7 @@ public static IRequestExecutorBuilder UseExceptions(
 
     public static IRequestExecutorBuilder UseTimeout(
         this IRequestExecutorBuilder builder) =>
-        builder.UseRequest(DocumentParserMiddleware.Create());
+        builder.UseRequest(TimeoutMiddleware.Create());
 
     public static IRequestExecutorBuilder UseInstrumentation(
         this IRequestExecutorBuilder builder) =>