fix changelog

Author: aratz-lasa

charts/warpstream-agent/CHANGELOG.md

@@ -5,9 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.11.0] - 2024-03-6
+## [0.10.9] - 2024-03-6
 
 ### Added
 
 - automatically roll deployments on config change
 - added checksum to deployment for configmap and secret
+- update warpstream agent version to v538