update changelog

Signed-off-by: HenryL27 <[email protected]>

Author: HenryL27

CHANGELOG.md

@@ -13,6 +13,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Add support for model connectors by @rawwar in ([#345](https://github.com/opensearch-project/opensearch-py-ml/pull/345))
 - Add support for model profiles by @rawwar in ([#358](https://github.com/opensearch-project/opensearch-py-ml/pull/358))
 - Support for security default admin credential changes in 2.12.0 in ([#365](https://github.com/opensearch-project/opensearch-py-ml/pull/365))
+- Add support for Cross Encoders - Trace, Config, Upload by @HenryL27 in ([#375](https://github.com/opensearch-project/opensearch-py-ml/pull/375))
 
 
 ### Changed