<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Work on this issue](https://contributors.gitlab.com/manage-issue?action=work&projectId=278964&issueIid=545161) - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=545161) </details> <!--IssueSummary end--> In https://gitlab.com/gitlab-org/gitlab/-/merge_requests/188810+, it [was noticed](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/188810#note_2500071663) that changes to namespace settings are intended to be audited using `NamespaceSettingChangesAuditor`. The new audit event necessary to to track updates to `allow_enterprise_bypass_placeholder_confirmation` wasn't added in that MR. We need to add that event following the [audit event documentation](https://docs.gitlab.com/development/audit_event_guide) and update `NamespaceSettingChangesAuditor` to use the new issue (see https://gitlab.com/gitlab-org/gitlab/-/merge_requests/188810#note_2518963728).