Merge topic 'compiler-path-normalization' into release-3.29

26e79ed299 Fix regression on reconfigure with unnormalized -DCMAKE_<LANG>_COMPILER=
1d485a8b45 Tests/RunCMake/CompilerChange: Simplify test cases

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Acked-by: Ashay Rane <ashay.r@gmail.com>
Merge-request: !9416