fix version in changelog (#77)

Author: shamrin

CHANGELOG.md

@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [1.19.0] - 2025-02-05
+## [1.20.0] - 2025-02-05
 
 ### Added