[DOCS] Reference to function for better usage does not exist

Function getScriptPath is not implemented. PHPDoc block of function
getPathInfo points to getScriptName.

Resolves: #94095
Releases: master, 10.4, 9.5
Change-Id: I6329cff8ace4a3b5562e6d2d568dbed6d69c0ae5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69094


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Tested-by: Richard Haeser <richard@richardhaeser.com>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Richard Haeser <richard@richardhaeser.com>