Updated mediawiki/extensions
Project: mediawiki/extensions/wikihiero  a141c22bdc01feb8af7737661c93aa342bc89e25

Migrate to JSON i18n

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

Change-Id: I8af35ae8ec067e4d8ef8b7343a87b900eb01ef2a