Merge branch '475155-http-500-error-page-missing-logo' into 'master'

Fix pathing for error images

Closes #475155

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/161259



Merged-by: Justin Ho Tuan Duong <hduong@gitlab.com>
Approved-by: Jay McCure <jmccure@gitlab.com>
Approved-by: Justin Ho Tuan Duong <hduong@gitlab.com>
Co-authored-by: Ash McKenzie <amckenzie@gitlab.com>