Update changelog

Author: laurmaedje

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+- Bumped resvg to v0.45, fontdb to v0.23, ttf-parser to v0.25, and pdf-writer to v0.12.
+
 ## [0.12.0]
 
 ### Added