MAINTAINERS: update email for mossaka

Switch to a personal address for reviewer contact.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: 2 people

MAINTAINERS

@@ -8,5 +8,5 @@
 # GitHub ID, Name, Email address
 "Burning1020","Zhang Tianyang","burning9699@gmail.com"
 "jsturtevant","James Sturtevant","jstur@microsoft.com"
-"mossaka","Jiaxiao Zhou","jiazho@microsoft.com"
+"mossaka","Jiaxiao Zhou","duibao55328@gmail.com"
 "jokemanfire","Dingyang Hu","hu.dingyang@zte.com.cn"