Update functionMap.php for SplFileInfo::getPathInfo return type

Co-authored-by: Ondřej Mirtes <ondrej@mirtes.cz>

Author: DannyvdSluijs

resources/functionMap.php

@@ -11556,7 +11556,7 @@
 'SplFileInfo::getMTime' => ['__benevolent<int|false>'],
 'SplFileInfo::getOwner' => ['__benevolent<int|false>'],
 'SplFileInfo::getPath' => ['string'],
-'SplFileInfo::getPathInfo' => ['SplFileInfo', 'class_name='=>'string'],
+'SplFileInfo::getPathInfo' => ['__benevolent<SplFileInfo|null>', 'class_name='=>'string'],
 'SplFileInfo::getPathname' => ['string'],
 'SplFileInfo::getPerms' => ['__benevolent<int|false>'],
 'SplFileInfo::getRealPath' => ['__benevolent<string|false>'],