Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  0e454490fcd5bbf14f10ac50a4f58ae67b8f9667

Renamed "Wikidata repository" special page group into "Wikibase repository"

"Wikidata" is just wrong since the extension itself is called "Wikibase". If this is an issue on
wikidata.org, then this should be solved there by changing the message only there.

Change-Id: I6a2775e7c6a0f8c4d60e3c6aac142a3a58d9a343