2.0.6-preview

New Feature:

• Enable using the TokenAcquireFactory default instance from anywhere in an ASP.NET Core application #1958

Bug Fixes:

• Fixes a race condition only present in .NET 7 - #1957
• Fix from @rvplauborg to DownstreamWebApiOptions.Clone, which was missing two properties. #1970
• Updates to OWIN and 1P extensibility