Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  e5b869325aaf937d3d5b28fb666fc5bd4bac2fa5

Provide config when constructing WikiImporter in RepoHooksTest

Constructing WikiImporter without Config was depercated in 1.25 and caused
RepoHooksTest to fail.

Change-Id: Idfadf462d9e4cfdfe7213cdc46161cfc300d2261