[jdk11u-dev] RFR: 8369226: GHA: Switch to MacOS 15 [v2]

[Antonio Vieiro]

> Backport of [JDK-8369226](https://bugs.openjdk.org/browse/JDK-8369226) from JDK17 that upgrades `macos-13` runners to `macos-15-intel`, and XCode from `14.3.1` to `16.4`, since `macos-13` will be removed in early december.
> 
> The backport is not clean, as there are many differences between GHA in JDK11 and upper versions (e.g.
> [JDK-8341097](https://bugs.openjdk.org/browse/JDK-8341097), [JDK-8325194](https://bugs.openjdk.org/browse/JDK-8325194)).

Antonio Vieiro has refreshed the contents of this pull request, and previous commits have been removed. Incremental views are not available. The pull request now contains one commit:

  Backport 7fe25530c47cacc11c5214ef7ef4db443701eabf

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Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/3117/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/3117/files/fefa04dd..f607e393

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3117&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3117&range=00-01

  Stats: 20 lines in 1 file changed: 3 ins; 2 del; 15 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3117.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3117/head:pull/3117

PR: https://git.openjdk.org/jdk11u-dev/pull/3117