More missing using statements

Signed-off-by: Whit Waldo <[email protected]>

src/Dapr.Actors.Generators/ActorRegistrationGenerator.cs

@@ -85,6 +85,7 @@ private static string GenerateActorRegistrationSource(Compilation compilation, I
 
         return $@"
 using Microsoft.Extensions.DependencyInjection;
+using Dapr.Actors.AspNetCore;
 using Dapr.Actors.Runtime;
 using Dapr.Actors;
 using Dapr.Actors.AspNetCore;