Merge branch '476244-fix-premailer-vite' into 'master'

Fix premailer errors in tests when Vite is enabled

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/166920



Merged-by: Stanislav Lashmanov <slashmanov@gitlab.com>
Approved-by: Stanislav Lashmanov <slashmanov@gitlab.com>
Reviewed-by: Stanislav Lashmanov <slashmanov@gitlab.com>
Co-authored-by: Heinrich Lee Yu <heinrich@gitlab.com>