RFR: 8334731: GHA: build on macOS / aarch64 [v2]

[Andy Goryachev]

On Fri, 21 Jun 2024 15:50:31 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> GitHub Actions: add a macOS / aarch64 build using a macOS 14 test runner and a macOS / aarch64 boot JDK. This is a brute force approach that duplicates the job config (I don't want to spend the time to figure out how to parameterize the `.yaml` script).
>
> Kevin Rushforth has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add a note about duplicated logic

weird: the detail view shows the macOS aarch64 target has completed, but the PR checks displays it as running still...

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PR Comment: https://git.openjdk.org/jfx/pull/1484#issuecomment-2183018916