Updated mediawiki/extensions
Project: mediawiki/extensions/Insider  f38791a6018bd328d65fb4a16fb6847ccf05c86a

Migrate to JSON i18n

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

Change-Id: I5d7e9d034c653443e6c264e22fbefdc31153f5cb