Webform compatibility on php 8.1

[manachynskyi]

This patch https://github.com/ymcatwincities/openy_gated_content/blob/master/composer.json#L42 broke compatibility with Webfroms (required in the OpenY) on PHP 8.1 (core 9.3.15).

Webform field formatter extends core formatter base, but in the patch above we change the signature of the method in the core, wich break webform's field.

[podarok]

@froboy check this one

was added in fivejars#418 (comment)