Update TFM to .NET 9.0 and create shared dotnet setup action for workflows#208

BenjaminMichaelis merged 3 commits into

mainIntelliTect/EssentialCSharp.ListingManager:mainfrom

copilot/fix-5dbe2693-23e2-4738-8e01-7f5e33a23b48IntelliTect/EssentialCSharp.ListingManager:copilot/fix-5dbe2693-23e2-4738-8e01-7f5e33a23b48Copy head branch name to clipboard