Updated mediawiki/extensions Project: mediawiki/extensions/MobileFrontend 667ceab077c9d96d92041cd07c796b927fa129b8

QA: Fix the browser tests to reflect anonymous editing on beta labs

Note this will not work locally since anonymous editing is turned off
in default installs but it is more important that our tests pass.

Bug: T94156
Change-Id: Id8182a1fbcce0b85d5a4fc5ae3e4dfac88b0b88a