Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  6245988c2e1c5ac7bdcc9d6d5300955539116c55

Refactor SqlStore::doSchemaUpdates

This allows schema updates to be defined in a more concise way.

Change-Id: I387f1211b5cd27541b38e8d0b4d824e69357f7f2