[php-src] Issue #11456: finfo Returns Unexpected Mimetype for Some CAD Formats

Issue: https://github.com/php/php-src/issues/11456 Author: falconsmilie ### Description A couple of popular CAD file formats are returning unexpected results using finfo(). [STL](https://en.wikipedia.org/wiki/STL_(file_format)) and [STP/STEP](https://en.wikipedia.org/wiki/ISO_10303-21). The following code: ```php <?php $path = dirname(__FILE__) . '/my.step'; $file = new \finfo(\FILEINFO_MIME_TYPE); $step = $file->file($path); $path = dirname(__FILE__) . '/my.stp'; $file = new \finfo(\FILEINFO_MIME_TYPE); $stp = $file->file($path); $path = dirname(__FILE__) . '/my.stl'; $file = new \finfo(\FILEINFO_MIME_TYPE); $stl = $file->file($path); echo $step; echo $stp; echo $stl; ``` Resulted in this output: ``` text/plain text/plain application/octet-stream ``` But I expected this output instead: ``` model/step model/step model/stl ``` Sorry, but Github won't allow attaching example files for STL or STEP. ### PHP Version 8.2.1 ### Operating System _No response_