How to add one year to a DateTime in a leap Year

I want to get the last day of the month of the next year from a given date

Here is how I did :

$copy = new DateTime();
$lastDay = new DateTime($copy->add((new DateInterval('P1Y')))->format('Y-m-t'));

This works exept in this exemple :

$copy = new DateTime('2024-02-29');
$lastDay = new DateTime($copy->add((new DateInterval('P1Y')))->format('Y-m-t'));

It returns me ‘2025-03-31’ while I want ‘2025-02-28’