FEATURES:
- NEW: Added `get_domain_transfer_lock`, `enable_domain_transfer_lock`, and `disable_domain_transfer_lock` APIs to manage domain transfer locks. (dnsimple/dnsimple-python435)
- NEW: Added `list_registrant_changes`, `create_registrant_change`, `check_registrant_change`, `get_registrant_change`, and `delete_registrant_change` APIs to manage registrant changes. (dnsimple/dnsimple-python433)