Upgrade to dotnet 7.0

[amal-stack]

No description provided.

[ardalis]

If we update to net7 that will make it tough for older projects to use. Is there anything that requires net7?

[amal-stack]

@ardalis I tried upgrading because I noticed the CI builds have been failing lately due to an error in the ReferenceAssemblyAnnotator library:

It is an open issue in the library that it breaks on projects with multiple framework targets.
In my fork, the build succeeded when I upgraded to .NET 7. (This might also be due to the fact that build.yml uses dotnet 7 to build the project, not quite sure):

Notice the top two commits where the build started failing when I reverted to .NET 6.

[ardalis]

Weird, thanks. Looking into it.

[ardalis]

Since we still have netstandard targeting hopefully this should be fine.