Fix PHP 8.4 deprecation: Implicitly marking parameter as nullable is deprecated, the explicit nullable type must be used instead

PHP 8.4 will be released in November 2024, but the list of new features and deprecated features is...

https://dev.to/gromnan/fix-php-84-deprecation-implicitly-marking-parameter-as-nullable-is-deprecated-the-explicit-nullable-type-must-be-used-instead-5gp3