Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  d943fdf6afe8f7d3c0bc3975df927df1a16442ac
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(hotfix) selenium sitelinks tests fix

- entity selector has changed its logic,
selenium tests have to be adjusted

Change-Id: If55396e7537c2e5c0347e6b3107f2842ba56364a