git: openjdk/jfx25u: master: 8369140: GHA: Update macOS / x64 build to use macos-15-intel runner

[Kevin Rushforth]

Changeset: 05d3a219
Branch: master
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2025-10-14 19:39:48 +0000
URL:       https://git.openjdk.org/jfx25u/commit/05d3a21999f3577445eedde8c09b05d63f55ecd4

8369140: GHA: Update macOS / x64 build to use macos-15-intel runner

Reviewed-by: jvos
Backport-of: e8820e2482bbc00765975854e738fdc214a46ea4

! .github/workflows/submit.yml