[skip ci] chore: adjust i18n entries in CODEOWNERS (go-gitea#6667)

Matching non-en files would allow me to catch up with all Weblate PRs, which I sometimes completely miss. And we've got a brand new path for new strings.

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/6667
Reviewed-by: Otto <[email protected]>
Reviewed-by: Gusted <[email protected]>
Co-authored-by: 0ko <[email protected]>
Co-committed-by: 0ko <[email protected]>

Author: 0ko

CODEOWNERS

@@ -33,8 +33,9 @@ models/.* @gusted
 # for code that lives in here.
 routers/.* @gusted
 
-# Let new strings be checked by the translation team.
-options/locale/locale_en-US.ini @0ko
+# Let locale changes be checked by the translation team.
+options/locale/.* @0ko
+options/locale_next/.* @0ko
 
 # Personal interest
 .*/webhook.* @oliverpool