chore: update changes

changes/v5.0.13-en.md

@@ -20,3 +20,5 @@
 
 - Fix shared subscription 'sticky' strategy [#9578](https://github.com/emqx/emqx/pull/9578).
   Prior to this change, a 'sticky' subscriber may continue to receive messages after unsubscribing.
+
+- Add check to ensure that a given key is among the prepared statements on query in the mysql connector [#9571](https://github.com/emqx/emqx/pull/9571).

changes/v5.0.13-zh.md

@@ -20,3 +20,5 @@
 
 - 修复共享订阅的 'sticky' 策略 [#9578](https://github.com/emqx/emqx/pull/9578)。
   在此修复前，使用 'sticky' 策略的订阅客户端可能在取消订阅后继续收到消息。
+
+- Add check to ensure that a given key is among the prepared statements on query in the mysql connector [#9571](https://github.com/emqx/emqx/pull/9571).