[php-src] Issue #21557: Problem with jewishtojd For Years >= 6000 for Php8.3+

Issue: https://github.com/php/php-src/issues/21557
Author: oleibman

### Description

The following code:

```php
<?php
for ($yh = 5995; $yh < 6005; ++$yh) {
    $rh = jewishtojd(1, 1, $yh);
    echo "yh=$yh rh=$rh\n";
}
```

Resulted in this output for Php8.3, 8.4, 8.5:
```
yh=5995 rh=2537279
yh=5996 rh=2537633
yh=5997 rh=2538016
yh=5998 rh=2538371
yh=5999 rh=2538725
yh=6000 rh=0
yh=6001 rh=0
yh=6002 rh=0
yh=6003 rh=0
yh=6004 rh=0
```

But I expected this output instead (as it was for Php8.2, 8.1, 8.0, and 7.4):
```
yh=5995 rh=2537279
yh=5996 rh=2537633
yh=5997 rh=2538016
yh=5998 rh=2538371
yh=5999 rh=2538725
yh=6000 rh=2539110
yh=6001 rh=2539463
yh=6002 rh=2539818
yh=6003 rh=2540202
yh=6004 rh=2540557
```


### PHP Version

```plain
PHP 8.5.0 (cli) (built: Nov 18 2025 08:17:59) (ZTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Zend Engine v4.5.0, Copyright (c) Zend Technologies
    with Zend OPcache v8.5.0, Copyright (c), by Zend Technologies
```

### Operating System

Windows 11