Update gitlab_kramdown to 0.22.0
Use recently-released 0.22.0
version of the gitlab_kramdown
gem" https://rubygems.org/gems/gitlab_kramdown/versions/0.22.0.
This will allow gitlab_kramdown
to be installed in any Ruby 2.7.x
environment, rather than a minimum of Ruby 2.7.6
.
CC @ashrafkhamis @claytoncornell @jglassman1 @lciutacu @phillipwells @drcatherinepope just FYI.