Merge branch 'tailwind-migration-ruby-specs' into 'master'

Tailwind migration ruby specs

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/163921



Merged-by: Pavel Shutsin <pshutsin@gitlab.com>
Approved-by: Serena Fang <sfang@gitlab.com>
Approved-by: Pavel Shutsin <pshutsin@gitlab.com>
Co-authored-by: Vanessa Otto <votto@gitlab.com>