fix(threading): run message dispatch and library code on one dispatcher thread - #3453

A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "MSTest.TestFramework

- Add lib or ref assemblies for the net8.0 target framework

Some target frameworks declared in the dependencies group of the nuspec and the lib/ref folder do not have exact matches in the other location. Consult the list of actions below: