Merge branch '499867-test-10-migrations-of-gl-text-secondary-text-color-subtle' into 'master'

Test of 10 migrations of gl-text-secondary -> text-color-subtle

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/170105



Merged-by: Zack Cuddy <zcuddy@gitlab.com>
Approved-by: Dan MH <dmizzi-harris@gitlab.com>
Approved-by: Vanessa Otto <votto@gitlab.com>
Approved-by: Zack Cuddy <zcuddy@gitlab.com>
Co-authored-by: James Rushford <jrushford@gitlab.com>