Fix issue ordering event handler registration

Author: ramon-tomas-c

src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/MediatorModule.cs

@@ -31,7 +31,9 @@ protected override void Load(ContainerBuilder builder)
             builder.RegisterAssemblyTypes(typeof(ValidateOrAddBuyerAggregateWhenOrderStartedDomainEventHandler).GetTypeInfo().Assembly)
                 .As(o => o.GetInterfaces()
                     .Where(i => i.IsClosedTypeOf(typeof(IAsyncNotificationHandler<>)))
-                    .Select(i => new KeyedService("IAsyncNotificationHandler", i)));
+                    .Select(i => new KeyedService("IAsyncNotificationHandler", i)))
+                    .AsImplementedInterfaces();
+                    
 
             builder
                 .RegisterAssemblyTypes(typeof(CreateOrderCommandValidator).GetTypeInfo().Assembly)