Update CHANGELOG.md

CHANGELOG.md

@@ -12,6 +12,9 @@ You should also include the user name that made the change.
 
 ## 12.109.1 (2022/04/02)
 
+### Known issues
+- two-factor authentication is not working
+
 ### Bugfixes
 - API: Renoteが行えない問題を修正