Merge topic 'ci-xcode-26.4'

ae6506346f Merge branch 'backport-4.2-ci-xcode-26.4' into ci-xcode-26.4
bd14ba1d9c Merge branch 'backport-3.31-ci-xcode-26.4' into backport-4.2-ci-xcode-26.4
97913e9fb8 Merge branch 'backport-3.31-ci-xcode-26.4' into backport-4.2-ci-xcode-26.4
be4f6451f9 Tests/RunCMake/LinkStatic: Update for Xcode 26.4
56c4fb8b3d ci: Update macos-arm64 jobs to use Xcode 26.4
20361a0589 Tests/RunCMake/CMP0156: Update for Xcode 26.4
8b92847daf Xcode: Fix target ordering operator to meet std::sort requirements
aa942cd81f CTestCustom: Ignore warnings about zstd objects and libs with no symbols
...

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !11893