Merge topic 'cxxmodules-error-message-improvement' into release-3.28

4962eba981 cmDyndepCollation: clarify CXX_MODULES-without-BMI error message

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Acked-by: Yaraslau <yaraslau.tamashevich@gmail.com>
Merge-request: !9103