Update CHANGELOG in accordance with the latest changes.

CHANGELOG.md

@@ -6,8 +6,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [1.3.0-alpha] - Unreleased
+
 ### Added
--
+- CVAT-3D: support lidar data on the server side (<https://github.com/openvinotoolkit/cvat/pull/2534>)
 
 ### Changed
 -