Add a CHANGELOG entry for #415

Pull-request: #415

[ci skip]

Author: williamdes

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Add back a `/sessions` volume for sessions persistence (#399)
 - Support adding custom configurations in `/etc/phpmyadmin/conf.d` (#401)
 - Fix for debian 12 issue (#416) that caused libraries for extensions to be uninstalled
+- Add extension `bcmath` for 2nd factor authentication (#415)
 
 ## [5.2.1] - 2023-02-08