Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  e558c1a1e0f68082328a4ffc617d5a6ad7913c44

Got rid of getPrefixedId in entity serializer

This forces chanegs elsewhere since the entity serializer needs
to request a id formatter as dependency, due to the lack
of reasonable default

Change-Id: If66bc0716ee6124a73525d4b4016b63ffded3116