Update CHANGELOG and version.

CHANGELOG.md

@@ -4,6 +4,11 @@ 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).
 
+## [0.23.0](https://github.com/fabiocaccamo/python-fontbro/releases/tag/0.23.0) - 2024-06-23
+-   Add `get_family_classification` and `set_family_classification` methods.
+-   Improve `slugify` utility function.
+-   Bump requirements and `pre-commit` hooks
+
 ## [0.22.0](https://github.com/fabiocaccamo/python-fontbro/releases/tag/0.22.0) - 2024-05-14
 -   Add `is_monospace` method.
 -   Add `mypy` to `pre-commit`.