Merge topic 'ci-xcode-16.0'

cc293b4963 ci: Run RunCMake.ExternalProject serially in macos-x86_64 Xcode job
26359076c8 gitlab-ci: update macOS jobs to use Xcode 16.0

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !9830