[Alpine 3.17] Stop publishing container images #9573
Description
- Stop publishing images from nightly repos immediately: Alpine 3.17 images no longer maintained by .NET dotnet-docker#4866
- Stop publishing images from main repos with next .NET servicing release: Alpine 3.17 images no longer maintained by .NET dotnet-docker#4866
- [Alpine 3.17] Update dotnet-buildtools-prereqs-docker, delete dockerfiles, and mark images as EOL dotnet-buildtools-prereqs-docker#1220