Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  6ca2e35533d14bf443721a3582e457da0afbb102

Fix ResultBuilder test on travis

https://travis-ci.org/wikimedia/mediawiki-extensions-Wikibase/jobs/15228005

Change-Id: Ic291e1362b0845220117cb2e57436c54585ad8e0