bumping to 15.0.1

fix: use correct type for null singleton values

Last adjustments to docs. Bumping to 15.0

Changes to allow for [FromKeyedServices] in constructor functions. Bu…

…mps to 15 RC 1

Bumping to 15 alpha 4

Support for keyed services with ServiceKey attribute. IServiceProvide…

…rIsKeyedService implementation. Dropped .net 7 support.

Upgrading JasperFx, bump to 15-alpha-2

Removed an obsolete nuget

Bumping to 14.0.1

Dropping .NET 6, upgrading jasperfx deps, bumping to 14.0