Native builds on ARM64 Windows

[corbindavenport]

GitHub will offer arm64 Windows runners later this year: https://github.blog/2024-06-03-arm64-on-github-actions-powering-faster-more-efficient-build-systems/

The one issue right now is that Chocolatey on Windows doesn't download ARM Dart SDK, if that's not fixed by then, the build script would need to download the Dart SDK directly:

https://storage.googleapis.com/dart-archive/channels/main/raw/latest/sdk/dartsdk-windows-arm64-release.zip

[corbindavenport]

The runners are now available: https://github.com/corbindavenport/nexus-tools/blob/main/.github/workflows/compile.yaml