Update packages in SmartEnum.SystemTextJson

[janosorcsik]

Hi @ardalis!

If you have two projects A and B, and B has a reference to A.
And A is using the SmartEnum 2.0.1. and B is using the SmartEnum.SystemText.Json 1.0.0., you will get an error:

An unhandled exception has occurred while executing the request.
System.IO.FileLoadException: Could not load file or assembly 'Ardalis.SmartEnum, Version=1.0.11.0, Culture=neutral, PublicKeyToken=null'. The located assembly's manifest definition does not match the assembly reference. (0x80131040)
File name: 'Ardalis.SmartEnum, Version=1.0.11.0, Culture=neutral, PublicKeyToken=null'

If you downgrade the SmartEnum to 1.0.11. in A, the project will work again.

So this PR updates the package references to the latest.

[ardalis]

Thanks!

[Yaevh]

Ran into exactly the same problem yesterday. When is this fix scheduled for release?

[janosorcsik]

The way I see it we need to upgrade all the SmartEnum sub-packages. Because this problem occurs in the NewtonSoft.Json project also.