Update changelog

Author: Ellana42

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## [Version 1.1.2](https://github.com/dataiku/dss-plugin-multisheet-excel-export/releases/tag/v1.1.2) - Feature release - 2024-05
 - Style exported worksheet header
-- Auto-size columns to fit header
+- Auto-size columns to fit data
 
 ## [Version 1.1.1](https://github.com/dataiku/dss-plugin-multisheet-excel-export/releases/tag/v1.1.0) - Chore release - 2023-08
 - Use python library to create temp file instead of a custom cache