`$_SERVER['HTTP_HOST']` doesn't exist when requesting via HTTP/3 on nginx

### Description

I'm using _nginx 1.25.3_ + _PHP 8.3.0_.

When requesting via HTTP/2, I can get `$_SERVER['HTTP_HOST']` correctly. But when requesting via HTTP/3, `HTTP_HOST` doesn't exist in the array.

Will PHP officially fix this? Is there any other solution besides replacing `HTTP_HOST` with `SERVER_NAME`?

### PHP Version

PHP 8.3.0

### Operating System

Debian 12.2 64-bit