Update CHANGELOG

Author: Gummibeer

CHANGELOG.md

@@ -2,6 +2,18 @@
 
 All notable changes to `spatie/laravel-activitylog` will be documented in this file
 
+## v4.6.0 - 2022-09-22
+
+### What's Changed
+
+- Add a default value to `getExtraProperty()` by @grantholle in https://github.com/spatie/laravel-activitylog/pull/1090
+
+### New Contributors
+
+- @grantholle made their first contribution in https://github.com/spatie/laravel-activitylog/pull/1090
+
+**Full Changelog**: https://github.com/spatie/laravel-activitylog/compare/4.5.3...4.6.0
+
 ## 4.5.3 - 2022-05-31
 
 - Fix default auth guard for causer - [#1053](https://github.com/spatie/laravel-activitylog/pull/1053)
@@ -94,6 +106,7 @@ Special thanks to [Ahmed Nagi](https://github.com/nagi1).
 - 
 - 
 - 
+- 
 - Implement a `CauserResolver` to define causer for current runtime [#582](https://github.com/spatie/laravel-activitylog/issues/582).
 
 ## 3.17.0 - 2021-03-02