Hey, great job in getting this library published, I'm looking at adopting this for some of my projects.

Something I would like is to use the localstack feature where you can disable lazy loading, and specify the services you want it to start. We would then change the health check to wait for these services to be 'running'.

localstack docs here

If I sent a PR to add this, would you consider it?

I think we'd enable this with a nullable property on LocalStackContainerOptions like this:

/// <summary>A collection of services to eagerly start. If <see cref="Null"/> then services are started on-demand. 
public IReadOnlyCollection<string>? EagerLoadedServices { get; set; }