Merge topic 'FindXCTest-xcode-16' into release-4.0

2e59cee922 FindXCTest: Fix test module generation for Xcode 16
c653c1aa47 FindXCTest: Pass -bundle_loader linker flag for test module more reliably

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10573