Merge branch...

Merge branch '430919-technical-breakdown-how-to-block-projects-from-requesting-code-suggestions-2' into 'master' 

Add code completions enabled API

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/138814



Merged-by: Allen Cook <acook@gitlab.com>
Approved-by: Jon Jenkins <jjenkins@gitlab.com>
Approved-by: Alex Pooley <apooley@gitlab.com>
Approved-by: Vitali Tatarintev <vtatarintev@gitlab.com>
Reviewed-by: Vitali Tatarintev <vtatarintev@gitlab.com>