docs: update changelog to v0.9.0

Signed-off-by: Luis Carlos Aveiro <luisaveiro@users.noreply.github.com>

Author: luisaveiro

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [v0.9.0] - 2024-11-20
+### Changed
+- Upgrade dev dependencies.
+
 ## [v0.8.0] - 2024-10-28
 ### Changed
 - Upgrade dev dependencies.