Update CHANGELOG.md from release 23.4.0 (#343)

Author: razvan

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [23.4.0] - 2023-04-17
+
 ### Added
 
 - Deploy default and support custom affinities ([#319]).