Description:
------------
I'm forwarding this from another ticket[1].

A sample MP3 file[2] is erroneously detected as
application/x-font-gdos instead of audio/mpeg with PHP-7.4, but
not with PHP-7.3 nor PHP-8.0.

[1] <https://bugs.php.net/79681#1605807139>
[2] <https://drive.google.com/file/d/1QrF9iZBjmfgZGvOjrSVORfM6uI-nyidX/view?usp=sharing>


Test script:
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<?php

var_dump(mime_content_type('test_file.mp3'));


Expected result:
----------------
string(10) "audio/mpeg"


Actual result:
--------------
string(23) "application/x-font-gdos"