Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  1328b18d8912b461efd8f98ca9eeaa3a606c26c4

fix site link section link for site group and use sites table for this

- now, the siteGroup setting is unused and removed.

Change-Id: Ie17f2af0900743011cbae6397d2e36622e9f1614