Follow-up from "Fix: Update duo issue to mr with status check"

The following discussion from !201026 (merged) should be addressed:

• @fdegier started a discussion: (+3 comments)

  It appears that this check is incorrect, as it resolves to:

  Ability.allowed?(@current_user, :duo_workflow, @project)

  But the button is reliant on duo_workflow_in_ci and more recently duo_remote_flows_enabled