Use NumberFormatter instead of legacy NumberFormat

Description

The following code:

<?PHP
function nth(int $number) : ?string {
		$formatter = new \NumberFormatter('en_US', \NumberFormatter::ORDINAL);
		$formatted = $formatter->format($number);
		return $formatted === false ? null : $formatted;
}

echo nth(651959195189);
?>

Resulted in this output:

651,959,195,189rd

But I expected this output instead:

651,959,195,189th

PHP Version

PHP 8.3.6

Operating System

Linux Mint 22