Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  2121e537fcd4c59f5e13a2f1125d7972b0a4f1e2

Support Creative Commons cc-by-(sa-)4.0

Bug: 61896
Change-Id: Ibd743f08101bedeef578bd8c671b3c3a3f60e852