[php-src] PR #22918: ext/standard: Fix phpcredits() heading alignment

Pull Request: https://github.com/php/php-src/pull/22918 Author: LamentXU123 ``` PHP Group Thies C. Arntzen, Stig Bakken, Shane Caraveo, Andi Gutmans, Rasmus Lerdorf, Sam Ruby, Sascha Schumann, Zeev Suraski, Jim Winstead, Andrei Zmievski Language Design & Concept Andi Gutmans, Rasmus Lerdorf, Zeev Suraski, Marcus Boerger PHP Authors Contribution => Authors Zend Scripting Language Engine => Andi Gutmans, Zeev Suraski, Stanislav Malyshev, Marcus Boerger, Dmitry Stogov, Xinchen Hui, Nikita Popov Extension Module API => Andi Gutmans, Zeev Suraski, Andrei Zmievski UNIX Build and Modularization => Stig Bakken, Sascha Schumann, Jani Taskinen, Peter Kokot Windows Support => Shane Caraveo, Zeev Suraski, Wez Furlong, Pierre-Alain Joye, Anatol Belski, Kalle Sommer Nielsen Server API (SAPI) Abstraction Layer => Andi Gutmans, Shane Caraveo, Zeev Suraski Streams Abstraction Layer => Wez Furlong, Sara Golemon PHP Data Objects Layer => Wez Furlong, Marcus Boerger, Sterling Hughes, George Schlossnagle, Ilia Alshanetsky Output Handler => Zeev Suraski, Thies C. Arntzen, Marcus Boerger, Michael Wallner Consistent 64 bit support => Anthony Ferrara, Anatol Belski SAPI Modules Contribution => Authors Apache 2 Handler => Ian Holsman, Justin Erenkrantz (based on Apache 2 Filter code) CGI / FastCGI => Rasmus Lerdorf, Stig Bakken, Shane Caraveo, Dmitry Stogov CLI => Edin Kadribasic, Marcus Boerger, Johannes Schlueter, Moriyoshi Koizumi, Xinchen Hui Embed => Edin Kadribasic FastCGI Process Manager => Andrei Nigmatulin, dreamcat4, Antony Dovgal, Jerome Loyet litespeed => George Wang phpdbg => Felipe Pena, Joe Watkins, Bob Weinand ``` The first two title is wrongly aligned.