docs: update changelog and authors files

Author: antoineauger

AUTHORS

@@ -2,6 +2,7 @@ Adam Wróbel <https://adamwrobel.com>
 Adam Ziolkowski <adam@adsized.com>
 Alan Crosswell <alan@columbia.edu>
 Alex Seidmann <alex@leanpnt.de>
+Antoine Auger <https://antoineauger.fr/en>
 Anton Shutik <shutikanton@gmail.com>
 Arttu Perälä <arttu@perala.me>
 Ashley Loewen <github@ashleycodes.tech>

CHANGELOG.md

@@ -13,6 +13,7 @@ any parts of the framework not mentioned in the documentation should generally b
 ### Fixed
 
 * Fixed OpenAPI schema generation for `Serializer` when used inside another `Serializer` or as a child of `ListField`.
+* `ModelSerializer` fields are now returned in the same order than DRF
 
 ### Removed