Updated mediawiki/extensions
Project: mediawiki/extensions/Validator  356a9cc21d2880ed7a5b32111d27a4c575706b53

Migrate to JSON i18n

Procedure per https://www.mediawiki.org/wiki/Manual:GenerateJsonI18n.php
with shim.

Change-Id: If94e1be18f43f649e03349f1b57817bac83d750c