[add] package license

[deps] bump to latest

[deps] Target framework bump to .NET 9

[deps] Microsoft.Extensions.Configuration.Json bump to 9.0.*
[deps] Simplify.Repository.FluentNHibernate bump to 1.7.1
[deps] System.Data.SqlClient bump to 4.9.*
[deps] NUnit bump to v4
[deps] Test deps bump to latest
[edit] Switch to async Simplify.Scheduler usage

[r] sln file

[r] to primary constructors
[edit] handler await

[up] Simplify.Scheduler bump to 1.5
[up] Microsoft.Extensions.Configuration.Json bump to 8
[edit] Platform set to AnyCPU

[r] scheduler with database name

[edit] Windows service with database template switched to Simplify.Sc…

…heduler and upgraded to .NET 7

[r] formatting
[up] Simplify.Repository.FluentNHibernate bump to 1.5.*

[r] schema updater project name

[edit] explicit project name

C#9 set

Dependencies bump to latest (floating versions set)