Update CHANGELOG.md

Author: probablyjassin

CHANGELOG.md

@@ -52,6 +52,8 @@ These changes are available on the `master` branch, but have not yet been releas
   ([#2611](https://github.com/Pycord-Development/pycord/pull/2611))
 - Fixed `TypeError` when passing `skus` parameter in `Client.entitlements()`.
   ([#2627](https://github.com/Pycord-Development/pycord/issues/2627))
+- Fixed type annotations for attributes of `context`
+  ([#2635](https://github.com/Pycord-Development/pycord/issues/2635))
 
 ### Changed