Replace @pichuang with @tico88612 as zh-tw branch approver

Signed-off-by: Phil Huang <[email protected]>

Author: pichuang

CODEOWNERS

@@ -75,5 +75,5 @@
 /i18n/zh-cn.toml @hanyuancheung @Jacob953 @Rocksnake @Submarinee
 
 # Approvers for Traditional Chinese contents
-/content/zh-tw/ @pichuang @ydFu @hwchiu @johnlinp
-/i18n/zh-tw.toml @pichuang @ydFu @hwchiu @johnlinp
+/content/zh-tw/ @tico88612 @ydFu @hwchiu @johnlinp
+/i18n/zh-tw.toml @tico88612 @ydFu @hwchiu @johnlinp