Update Changelog

Author: shochdoerfer

CHANGELOG.md

@@ -2,6 +2,27 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
+## 0.3.0
+
+### Added
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- [#7](https://github.com/bitExpert/captainhook-validateauthor/pull/7) Configure PHPStan as pre-push hook
+- [#6](https://github.com/bitExpert/captainhook-validateauthor/pull/6) Switch from Travis build to GitHub Actions
+- [#5](https://github.com/bitExpert/captainhook-validateauthor/pull/5) Allow package to be installed on PHP 8
+- [#4](https://github.com/bitExpert/captainhook-validateauthor/pull/4) Update dependencies
+
 ## 0.2.0
 
 ### Added