Updated mediawiki/extensions
Project: mediawiki/extensions/Phalanx  4883d55afbb8b8b1d38e9712bf2c5cf2661d24b8

Replaced deprecated $wgSpecialPageGroups definition with the correct, modern way of grouping a special page

Change-Id: I055bbf6000a9fe7d49aacb08d8bb4da65d7084f1