Add aarch64 windows releases

[vvuk]

It would be great to have aarch64 windows builds here -- tools that rely on pbs_installer (such as pdm) are unable to find any python versions to install on aarch64 windows (i.e. Win11 Parallels on a Apple Silicon MBP). Things are detected properly, but the python version list of course doesn't contain any matches:

THIS_ARCH = 'aarch64'
THIS_PLATFORM = 'windows'

[vvuk]

Oh hey, I didn't search PRs, just issues; but just found this WIP: #93

[zanieb]

I've rebased onto main and am taking a look in #387

[zanieb]

This looks blocked by GitHub Actions runner availability #387 (comment) — unless you have ideas.

[skeptic-monkey]

Any news on this ?
https://github.com/bazelbuild/rules_python depends on this to be able to support python toolchain on windows arm64 (think of all the new laptop using the latest snapdragon soc, surface pro, ...).

[zanieb]

I'll look into using paid runners, but I can't do that in this organization. Please see #386 (comment)

[tonybaloney]

ARM on Windows runners are coming to GitHub Actions in the next few months.
They're available on private runners now, but I understand that's not an option for most projects. I have a VM as well to test the workflow

[zanieb]

They're actually available publicly (nope that's Linux) available in our org now but the images are missing all the necessary build tools.

[tonybaloney]

@zanieb released it publicly today https://github.blog/changelog/2025-04-14-windows-arm64-hosted-runners-now-available-in-public-preview/