[php-src] Issue #20849: ftp_nlist, ftp_mlsd not working anymore since PHP 8.5.x , same code works fine in PHP 8.4.x

Issue: https://github.com/php/php-src/issues/20849
Author: lubber-de

### Description

We have a FTP Server setup untouched since ages via WIndows IIS 8.5

The following code works fine in (8.4.x, but breaks in 8.5.x):

```php
<?php
$tempName = tempnam(sys_get_temp_dir(), 'x');
$remoteDir = '/testdir';
$remoteFile = $remoteDir . '/text.txt';

// works in PHP 8.4.x and 8.5.x :)
$fCon = ftp_ssl_connect('servername');
// works in PHP 8.4.x and 8.5.x :)
$fLogin = ftp_login($fCon,'user','pass');
// works in PHP 8.4.x and 8.5.x :)
ftp_pasv($fCon, true);

// works in PHP 8.4.x :)
// timeout in 8.5.x :(
$files = ftp_nlist($fCon, $remoteDir);

// works in PHP 8.4.x :)
// false in 8.5.x :(
$files2 = ftp_mlsd($fCon, $remoteDir);

// works in PHP 8.4.x and 8.5.x :)
ftp_get($fCon, $tempName, $remoteFile, FTP_BINARY);

// works in PHP 8.4.x and 8.5.x (when not using ftp_nlist/mlsd, otherwise fatal error)
ftp_close($fCon);```

Every ftp method works, just not the directory listing methods


### PHP Version

```plain
PHP 8.5.1 (cli) (built: Dec 17 2025 10:54:30) (NTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Zend Engine v4.5.1, Copyright (c) Zend Technologies
    with Zend OPcache v8.5.1, Copyright (c), by Zend Technologies
```

### Operating System

Windows Server 2019