Update release date for 8.2.4

Author: Sephster

CHANGELOG.md

@@ -5,7 +5,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-## [8.2.4] - released 2020-12-09
+## [8.2.4] - released 2020-12-10
 ### Fixed
 - Reverted the enforcement of at least one redirect_uri for a client. This change has instead been moved to version 9 (PR #1169)