Update CHANGELOG.md

Author: danielfeismann

CHANGELOG.md

@@ -22,7 +22,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Changed ThermalUnitValidation: Ensure that thermal boundaries of thermal house are not the same [#1186](https://github.com/ie3-institute/PowerSystemDataModel/issues/1186)
 - Converted `MappingEntry` into a normal class [#1087](https://github.com/ie3-institute/PowerSystemDataModel/issues/1087)
 - Renamed timeseries mapping `participant` column to `asset` [#1191](https://github.com/ie3-institute/PowerSystemDataModel/issues/1191)
-- Removed attribute `dsm` [#1195](https://github.com/ie3-institute/PowerSystemDataModel/issues/1195)
+- Removed attribute `dsm` from `LoadInput` [#1195](https://github.com/ie3-institute/PowerSystemDataModel/issues/1195)
 
 ## [5.1.0] - 2024-06-24