Release v22.143.0

Added

• Slice<TCommand> in Cratis.Arc.Chronicle.Testing.Slices expresses a command test as given state, one execution through Arc's real command pipeline, and outcome assertions, without a test-framework base class. Seed events, pin read models and set the caller with the Given… methods, call Run() once, and assert on the returned SliceOutcome<TCommand> (success, rejection, denied authorization, and appended events). See Slice testing API. (part of #3519)