CVE-2026-44798 Nautobot: GitRepository.current_head field should not be writable through REST API

Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, a user with access to add/change a GitRepository record could use the REST API to directly set the currenthead field on the record, which was not intended to be user-editable. Doing so could cause...