Support building and deploying singile-file apps

https://learn.microsoft.com/en-us/dotnet/core/whats-new/dotnet-10/sdk#file-based-apps-enhancements poitns out that .NET 10 supports publishing support for single file apps. It would be great if our s2i implementation would support it out of the box too.

See https://www.heroku.com/blog/support-for-dotnet-10-lts-what-developers-need-know/ for other folks who have implemented support for this.