chore: Improve generated output

[viceroypenguin]

See the following code:

services.Add(ServiceDescriptor.Create(
  typeof(global::Ns.IGreeter),
  typeof(global::Ns.Greeter),
  ServiceLifetime.Singleton,
  new ServiceDependency[]
  {
      new ServiceDependency(typeof(global::Ns.ILogger)),
  },
  new Func<ILogger, object>(static logger => new global::Ns.Greeter(logger)))
);

Update generations to use the factory version for all generations.