chore: prepare changelog for v0.15.1 (#1652)

Signed-off-by: itsomri <omric@nvidia.com>

Author: itsomri

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [v0.15.1] - 2026-06-01
+
 ### Added
 
 ### Changed