Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  d280920121c5e1b5f987d7b8be5124c23154a555

Fix inconsistencies in attribution text
* use the same text for plain and HTML format
* use the same text whether or not a deed URL is set

Bug: T76030
Change-Id: Iea53766b2e2031206d707838551bd82dba29e8c4