Add code_owner_reviewer_assignment_strategy to project_settings
Summary
- Adds
code_owner_reviewer_assignment_strategysmallint column toproject_settings(default: 0/disabled) - Adds
MergeRequests::CodeOwnerReviewerAssignmentStrategyconcern with enum (disabled=0, all_members=1) - Includes concern in
EE::ProjectSetting - Adds
auto_assign_code_owner_reviewersfeature flag (gitlab_com_derisk, default disabled)
Part 1 of 3 for CODEOWNERS automatic reviewer assignment.