그룹 플레이스홀더 재할당 API

REST API로 플레이스홀더 사용자를 일괄 재할당합니다.

히스토리 Introduced in GitLab 17.10 with a flag named importer_user_mapping_reassignment_csv . Enabled by default. Generally available in GitLab 18.0. Feature flag importer_user_mapping_reassignment_csv removed. Reassigning contributions to a personal namespace owner when importing to a personal namespace introduced in GitLab 18.3 with a flag named user_mapping_to_personal_namespace_owner . Disabled by default. Reassigning contributions to a personal namespace owner when importing to a personal name