chore(rich-text-web): update changelog

Author: uicontent

packages/pluggableWidgets/rich-text-web/CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [2.1.6] - 2023-04-18
+
 ### Fixed
 
 -   We fixed an issue when Rich Text widget not saving data when user leaves the page quickly after editing.