Mention automations as factor in Ref Arch selection

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/109798



Merged-by: Evan Read <eread@gitlab.com>
Approved-by: Jason Plum <jplum@gitlab.com>
Approved-by: Grant Young <gyoung@gitlab.com>
Approved-by: Evan Read <eread@gitlab.com>
Reviewed-by: Kaitlyn Chappell <kmchappell@gitlab.com>
Co-authored-by: Katrin Leinweber <kleinweber@gitlab.com>