Implicitly marking parameter $... as nullable is deprecated in php8.4,
the explicit nullable type must be used instead
Created with autofix from Ide15839e98a6229c22584d1c1c88c690982e1d7a
Break one long line in SpecialPage.php
Bug: T376276
Change-Id: I807257b2ba1ab2744ab74d9572c9c3d3ac2a968e