Actions: Self-hosted runners now support Windows ARM64

[github-product-roadmap]

Summary
The GitHub Actions Runner now supports Windows ARM64 architecture.

Intended Outcome
Previously, the Actions runner did not include Windows ARM64 as a supported OS & Arch combination. This new release of the runner enables customers to use their Windows ARM64 environments as self-hosted runners for GitHub Actions.

How will it work?
During the self-hosted runner creation flow, customers will select the Windows ARM64 release for deployment. For additional information on how to set up a self-hosted Windows ARM64 runner, please refer to our documentation. If you have any feedback or questions for Actions self-hosted Windows ARM support, you can submit an issue in the runner repository.