Enable Windows ARM64 builds

[ClayWarren]

Enables native Windows ARM64 builds for Flang 23.1.0, following #138.

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipe/meta.yaml:

• ℹ️ The recipe is not parsable by parser conda-souschef (grayskull). This parser is not currently used by conda-forge, but may be in the future. We are collecting information to see which recipes are compatible with grayskull.
• ℹ️ The recipe is not parsable by parser conda-recipe-manager. The recipe can only be automatically migrated to the new v1 format if it is parseable by conda-recipe-manager.

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/33231076657. Examine the logs at this URL for more detail.}

[h-vetinari]

Please keep the three commits separate -- adding win-arm64, removing numpy, rerendering

[h-vetinari]

Done — split into Windows ARM64 enablement, NumPy diagnostic removal, and rerender commits.

Thanks. Please keep attribution (and ideally metadata) when you directly reuse commits between branches, for example by doing git cherry-pick f40ecd5

Also, please undo the build number bump here; I realise that this can easily be confusing, so here's a rule of thumb¹: a recently rerendered main branch will generally not need a build number bump. On the other hand, an older branch that hasn't been touched in a long time will almost certainly require a build number bump.

Footnotes

1. beyond the more precise "did the existing variant configs under .ci_support/*.yaml change?" that I mentioned already ↩

[h-vetinari]

Very nice, thanks!