Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  3adf4760107ec99568c98ae139ee68a607b9f5cc

(testing) necessary adjustment to blockeduser selenium test

- this caused the test to fail since the handling of blocked users
changed on Special:CreateItem

Change-Id: I65674bc398e9d5c06b492424255de7216e93e322