docs: Add CHANGELOG entry for #326

# Conflicts:
#	CHANGELOG.md

Author: dongfangtianyu

CHANGELOG.md

@@ -22,6 +22,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixes `Enum` deserialization when the value is `UNSET`.
 - Add handling of application/vnd.api+json media type.
 - Support passing models into query parameters (#316). Thanks @forest-benchling!
+- Add support for cookie parameters (#362).
 
 ### Changes