Merge branch '500057-only-allow-api-for-direct-access-api' into 'master'

Create new WorkflowsInternal API for ai_workflows scope

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/171229



Merged-by: Jessie Young <jessieyoung@gitlab.com>
Approved-by: Jeff Park <jpark@gitlab.com>
Approved-by: Jessie Young <jessieyoung@gitlab.com>
Co-authored-by: Dylan Griffith <dyl.griffith@gmail.com>