git: openjdk/jdk8u-dev: 8318039: GHA: Bump macOS and Xcode versions

[Zdenek Zambersky]

Changeset: 765bd89b
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2024-07-22 21:51:08 +0000
URL:       https://git.openjdk.org/jdk8u-dev/commit/765bd89b6c3dd12f9248d8626884103f58cbaa5a

8318039: GHA: Bump macOS and Xcode versions

Reviewed-by: sgehwolf, andrew
Backport-of: 605c9767291ddf1c409c3e805ffb3182899d06c2

! .github/workflows/submit.yml