Description:
------------
When trying to instantiate a Chronos object and preload is enabled, there seems to be a nonsensical fatal error. This happens since php7.4.12, previous php7.4 versions don't have this issue.

To reproduce:
> composer require cakephp/chronos:2.0.6
> php -dopcache.enable_cli=1 -dopcache.preload=preload.php index.php
Fatal error: Only variables can be passed by reference in /var/www/html/index.php on line 5

In case this is relevant - I used the official php docker images + opcache module, and composer version 2.0.7

Test script:
---------------
// preload.php
<?php

require __DIR__ . '/vendor/autoload.php';


// index.php
<?php

require __DIR__ . '/vendor/autoload.php';

$date = Cake\Chronos\Chronos::createFromFormat(DATE_RFC3339_EXTENDED, '2020-11-20T21:00:00.000Z');



Expected result:
----------------
-- no error

Actual result:
--------------
Fatal error: Only variables can be passed by reference in /var/www/html/index.php on line 5