Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  4cb9565f42b84da435689d8f3999f537027c62a0

Fix name of syntaxHighlight icon file

It's referred to as url(images/syntaxHighlight.svg) in
ve.ui.MWSyntaxHighlight.css

Change-Id: I32391abc895caff9746ea5a4956a54c4c176c573