Workflows, projects, and packages updates - #240

Should be mergeable once CI passes.

@copilot There are projects in this repo which target xamarin ios, e.g. xamarin.ios1.0, which is deprecated and doesn't work with modern tooling. At present I'm interested only in the projects in the iOS solution folder: CSharpMath.Ios, CSharpMath.Ios.Example, and CSharpMath.Ios.Tests. These should to be updated to a modern version of dotnet ios, ideally net10.0-ios. Can you try to do that and open a PR into this branch?

@charlesroddie I've opened a new pull request, #241, to work on those changes. Once the pull request is ready, I'll request review from you.

Avalonia: either we disable tests, or wait for Avalonia v12 preview which will move to SkiaSharp 3.0. I think we should leave this until Avalonia v12 preview which should come out in the next 2 weeks.

Avalonia didn't end up releasing a preview in 2025 so I'll disable Avalonia tests to get this PR passing.

@charlesroddie That's not needed - I got this PR passing.

Ok great can I merge it?

I'll also update the version number to 1.0.

Actually, I don't think the version number is kept track in-repo. Yea, this should be mergable now.

The failing test just needs a re-run I think