Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  c6ef358f98039a076de1014c1f3f9b27708ff647

Make tests more robust against config.

* ChangeRowTest should be skipped on client
* EntityLookupTest should use Query entities only in experimental mode.

Change-Id: Iaefa2e133bcbbfaba7ccea7e7a628b8a006b854e