Updated mediawiki/extensions
Project: mediawiki/extensions/VipsScaler  c699e588897ccdc52b64174f00cff3b200617dd6

use shrink instead of im_shrink

shrink is more efficient with recent versions of vips while im_shrink
still uses more resources.

Change-Id: Id8256138770aff8ecb3aa873012e0ccd0564c768