Merge topic 'FindRuby-updates'

46064c81 FindRuby: Add support for versions up to 2.7
675eaf3b FindRuby: Update MSVC runtime library selection
b970e25d FindRuby: Remove extra whitespace
ecdace4d FindRuby: Include FPHSA closer to where it is used
f52f4961 FindRuby: Provide Ruby_LIBRARIES result variable
b00d736a FindRuby: Add dedicated tests

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4481