Update CHANGELOG.md

Author: Scienfitz

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.11.3] - 2024-11-06
+### Fixed
+- `protobuf` dependency issue, version pin was removed
+
 ## [0.11.2] - 2024-10-11
 ### Added
 - `n_restarts` and `n_raw_samples` keywords to configure continuous optimization