PHP version requirement needs updating?

We just activated Slider Addons and when trying to use its widget within Elementor, the editor doesn’t finish loading. Turns out even though Slider lists PHP 7.0 as the minimum version required, there is a line on Elementor’s widget that does require PHP 8.1+ . I don’t know what’s best for this: use a different syntax to keep the functionality or update Slider‘s PHP minimum requirements.

Thanks in advance, have a great day!

The page I need help with: [log in to see the link]