Fix changelog

Author: albertomercurio

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Introduce new methods of `sesolve_map` and `mesolve_map` for advanced usage. Users can now customize their own `iter`ator structure, `prob_func` and `output_func`. ([#565])
 - Use `ProgressMeter.jl` for progress bar rather than our in-house implementation. ([#569], [#575])
+- Simplify type structure for time evolution solutions. ([#572])
 
 ## [v0.37.0]
 Release date: 2025-10-12