Bindings for arm64 Windows

[eitsupi]

hellorust seems supporting arm64 Windows (aarch64-pc-windows-gnullvm) now.
r-rust/hellorust@e371cae

[CGMossa]

@yutannihilation Do you have any guidance on this?

[yutannihilation]

I think you can just do the same as you do for Arm macOS and Arm Linux.

libR-sys/.github/workflows/test.yml

Line 69 in adb7097

- {os: macOS-latest, r: 'release', rust-version: 'stable', target: 'aarch64-apple-darwin', skip-tests: 'true', emit-bindings: 'true'}