Merge topic 'clang-cl-showIncludes' into release-3.28

0d933fc0d9 Ninja: Update showIncludes prefix detection for clang-cl 18
a88acb0a41 Tests/RunCMake/Ninja: Rename showIncludes case for clang-cl <= 17

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !9229