Adding public API test coverage for Aspire.Hosting.Nats#5129

mitchdenny merged 13 commits intodotnet:maindotnet/aspire:mainfrom

Zombach:zombach/validate-arguments-of-public-methods#aspire-hosting-natsZombach/aspire:zombach/validate-arguments-of-public-methods#aspire-hosting-natsCopy head branch name to clipboard