[jdk11u-dev] RFR: 8340671: GHA: Bump macOS and Xcode versions to macos-12 and XCode 13.4.1

[Antonio Vieiro]

On Thu, 19 Sep 2024 08:59:31 GMT, Antonio Vieiro <duke at openjdk.org> wrote:

> The `macos-11`  github runners [were deprecated and removed in June 2024](https://github.blog/changelog/2024-05-20-actions-upcoming-changes-to-github-hosted-macos-runners/) , making the `macos` tests to hang in `openjdk11u-dev` (and other OpenJDK repositories).
> 
> [JDK-8335793 GHA: Bump macOS and Xcode versions](https://bugs.openjdk.org/browse/JDK-8335793) upgraded the version [from `macos-11` to `macos-13`](https://github.com/openjdk/jdk11u-dev/pull/2835).  This upgrade in github runners required a long list of changes in `openjdk11u-dev` that proved difficult to review.
> 
> In order to ease the review process this PR downgrades the version of github runners in `jdk11u-dev` from the current `macos-13` to `macos-12` and `xcode-13.4.1`. This will require a single backport of [JDK-8299254 Support dealing with standard assert macro](https://bugs.openjdk.org/browse/JDK-8299254) (a follow-up to this PR), making the review process easier.
> 
> Once the github actions are running again in `macos-12` an upgrade to `macos-13` could be performed, if required, with some more additional PRs.

Reopened as https://github.com/openjdk/jdk11u-dev/pull/2940

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PR Comment: https://git.openjdk.org/jdk11u-dev/pull/2936#issuecomment-2372280093