feat(Numbers): update changelog

Author: marcos-sinch

CHANGELOG.md

@@ -33,6 +33,11 @@ All notable changes to the **Sinch Python SDK** are documented in this file.
 - **[feature]** SMS Inbounds API: `get` and `list` operations, with full model, endpoint, and unit test coverage (see [MIGRATION_GUIDE.md](MIGRATION_GUIDE.md#inbounds-api)).
 - **[design]** SMS Sinch Events inbound payload models unified with the Inbounds API: `MOTextSinchEvent`, `MOBinarySinchEvent`, `MOMediaSinchEvent`, `MediaBody`, and `MediaItem` removed from `sinch_events`; use `InboundMessage` (and its variants) from `sinch.domains.sms.models.v1.types` instead (see [MIGRATION_GUIDE.md](MIGRATION_GUIDE.md#sms-sinch-events)).
 
+
+### Numbers
+
+- **[feature]** `NumberSinchEvent` fields and enums synchronized with the Numbers OAS spec (#161).
+
 ---
 
 ## v2.0.1 – 2026-06-02