Update changelog

Author: ToothyDev

CHANGELOG.md

@@ -30,7 +30,8 @@ These changes are available on the `master` branch, but have not yet been releas
 - Fixed `Interaction.channel` not being resolved with user-installed commands ran in
   guilds which the bot is not a member of.
   ([#3047](https://github.com/Pycord-Development/pycord/pull/3047))
-- Fixed `ForwardedMessage.mentions` and `ForwardedMessage.type` not being populated.
+- Fixed the `ForwardedMessage.mentions`, `ForwardedMessage.role_mentions` and
+  `ForwardedMessage.type` attributes not being populated.
   ([#3051](https://github.com/Pycord-Development/pycord/pull/3051))
 
 ### Deprecated