Upgrade dependencies and remove NET 6

[lahma]

If someone would ever still need NET 6, they would just fall back to netstandard. Now cancelling old jobs for new pushes for same PR.

[adams85]

Well, as far as I can see, the only drawback of switching to netstandard2.1 for potential .NET 6 users would be losing this optimization:
https://github.com/adams85/acornima/blob/v1.1.1/src/Acornima/Tokenizer.RegExpParser.cs#L1077-L1082

Which is not a big deal, so I'm ok with dropping net6.0.

However, it would be nice to run tests on net9.0 as well. Could you possibly set up NUKE to do this?

[lahma]

Well, as far as I can see, the only drawback of switching to netstandard2.1 for potential .NET 6 users would be losing this optimization: v1.1.1/src/Acornima/Tokenizer.RegExpParser.cs#L1077-L1082

I myself have a hard stance for modern NET, anyone who has jumped to this wagon is expected to upgrade their solutions, especially as it's quite easy from NET 5 onwards. Full framework support lifecycle is a different thing and this change does follow EOL.

However, it would be nice to run tests on net9.0 as well. Could you possibly set up NUKE to do this?

Sure thing! I added the the test project targets, no NUKE changes required as tests will be run on each targeted framework. You can see in the latest commit that I had to do some little adjustements.

[adams85]

I myself have a hard stance for modern NET, anyone who has jumped to this wagon is expected to upgrade their solutions, especially as it's quite easy from NET 5 onwards.

You're absolutely right, it's just that real life doesn't really want to follow this idea in my experience... 😄 Because of this, I usually don't care much about out-of-support targets until they become too painful.

But again, I'm completely happy if we move with the times in this project.

Sure thing! I added the the test project targets, no NUKE changes required as tests will be run on each targeted framework. You can see in the latest commit that I had to do some little adjustements.

Thank you very much!