changelog addition

Author: fernando-cortez

CHANGELOG.md

@@ -57,6 +57,7 @@ Additional documentation and release notes are available at [Multiplayer Documen
     * com.unity.postprocessing upgraded to v3.5.0
   * Netcode for GameObjects upgraded to v2.4.3
   * Multiplayer Services upgraded to v1.1.4
+* Upgraded to Authentication package v3.5.1, fixing switching profile issues (#920)
 
 ### Cleanup
 * Removed ParrelSync from the project (#890)