2.3 - Add mp3 extension in MimeTypeExtensionGuesser

Right now the file symfony/symfony/src/Symfony/Component/HttpFoundation/File/MimeType/MimeTypeExtensionGuesser.php does not contain any mp3 detection. I have to change the "audio/mpeg" => "mpga" to "audio/mpeg" => "mp3"

Can someone fix it?