Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  7ffad55d5baeb7e5ff3d9b61eb762e78857b6077

Made SetupTest run without actually accessing a real database

This enabled running the test when using a DB different then MySQL and when not having a full MW setup

Change-Id: I07071d18e1dd6e47d4ad6886fe9715900773aafc