update changelog

Author: aozisik

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 All notable changes will be documented in this file
 
+## 2.1.0 - 2022-08-12
+
+- Added support for Sentry SDK v8
+- You can now enable sandbox mode while sending emails. (Thanks [@zbrody](https://github.com/swiftmade/laravel-sendgrid-notification-channel/pull/3))
+
 ## 2.0.0 - 2022-04-07
 
 - Added support for Laravel 8 and 9.