chore: changelog

Author: barakmich

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
+### Added
+- testing(query planner): add a wide arrow benchmark to test query plan performance in the small (#2927)
 
 ## [1.49.2] - 2026-03-02
 ### Added