Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  467467a9a9d685f68d6c8d4763097247b91911ef

Make EntityPerPageBuilderTest fields/methods private

This is split from I04767f2 to make it easier to review.

Change-Id: I752c3e3b9c7c7417ec4d0fc4e19e3235def7c20f