[macOS] add README file for M1 runner

[mikhailkoliada]

Description

Add arm64 readme

Related issue: -

Check list

• Related issue / work item is attached
• Tests are written (if applicable)
• Documentation is updated (if applicable)
• Changes are tested and related VM images are successfully generated

[jpsim]

Are macos-13-arm64 runners generally available? Is there a public or private beta available to try these out?

Specifying this for actions appears to stall at Waiting for a runner to pick up this job...

[andreasabel]

Atm, they are not listed in the toplevel README, but I don't know whether this is by intention or oversight.

[jpsim]

Instructions are now in the release blog post: https://github.blog/2023-10-02-introducing-the-new-apple-silicon-powered-m1-macos-larger-runner-for-github-actions/

To try the new Apple silicon macOS larger runner, update the runs-on: key in your GitHub Actions YAML workflow YAML file to target macos-latest-xlarge or macos-13-xlarge.

[Saadnajmi]

Will these come to Azure Devops as well, or only Github Actions for now?

[thewtex]

To try the new Apple silicon macOS larger runner, update the runs-on: key in your GitHub Actions YAML workflow YAML file to target macos-latest-xlarge or macos-13-xlarge.

I tried both macos-latest-xlarge and macos-13-xlarge here: spatial-image/multiscale-spatial-image#84, but it only results in Job failed?

[Lawere]

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