PHP 8.4 compatibility

[peterjaap]

Description

Fixed Issues (if relevant)

1. https://github.com/mageplaza/magento-2-reports/<issue_number>: Issue title
2. ...

Manual testing scenarios

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)

[mariuszsienkiewicz]

Hi, I ran into the same issue with PHP 8.4 — thanks for looking into it! That said, I believe some of the changes you made aren't quite correct. Specifically, the updates in:

• Helper/Data.php
• Helper/Email.php
• Console/Delete.php

aren’t valid, because in PHP 8.4 (or any other version) you can’t use ? for nullable types unless a type is explicitly declared (e.g., ?int $storeId). It would be better to either add the appropriate type hint or remove the ? if no type is defined.