Merge branch 'susie.bee-master-patch-c5cc' into 'master'

Docs: Clarify self-hosted models setup with AI Gateway/licenses

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/174461



Merged-by: Jon Glassman <jglassman@gitlab.com>
Approved-by: Jon Glassman <jglassman@gitlab.com>
Co-authored-by: Michael Friedrich <mfriedrich@gitlab.com>
Co-authored-by: Susie Bitters <sbitters@gitlab.com>