Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  4b72a9e4cea1011d4b3b1c3ce04b779cf7300b38

Browsertests: Rename expectations

Accordingly to new version of RSpec_expections we could no longer use
"be_true", "be_false" and "should" keywords.

Bug: 66184
Change-Id: Ia180a22560b4d56c86b892887c3ebebfbdc466ae