Updated mediawiki/extensions
Project: mediawiki/extensions/UniversalLanguageSelector  ded20c61f27c841240e53f9be69239aef0d83349

Fix and enable feature Persistent settings

* Reuse existing steps where possible
* Rename steps file to match convention
* Moved unrelated steps to a new file
* Added wait for saving

https://mingle.corp.wikimedia.org/projects/internationalization/cards/3822

Bug: 56885
Change-Id: I480058430696579947187265b940ea46156f1519