chore(datagrid-web): update changelog

Author: samuelreichert

packages/pluggableWidgets/datagrid-web/CHANGELOG.md

@@ -10,6 +10,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - We fixed an issue where missing consistency checks for the captions were causing runtime errors instead of in Studio Pro
 
+- We added a new property for export to excel. The new property allows to set the cell export type and also the format for type number and date.
+
 ## [3.6.1] - 2025-10-14
 
 ### Fixed