Merge topic 'post-rel-dev'

8071304f2e Configure CMake itself with policies through CMake 4.0
f7380d8c4a export: Increase maximum policy version in exported files to 4.0
94ff184a63 Add deprecation warnings for policies CMP0143 and below

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !10925