PHP 8.1 support

Hi,

Warnings are still present in the latest version of CF7 running on PHP 8.1.

Deprecated: Return type of WPCF7_FormTag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/form-tag.php on line 396

Deprecated: Return type of WPCF7_FormTag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/form-tag.php on line 388

Deprecated: Return type of WPCF7_FormTag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/form-tag.php on line 382

Deprecated: Return type of WPCF7_FormTag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/form-tag.php on line 400

Deprecated: Return type of WPCF7_Validation::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/validation.php on line 78

Deprecated: Return type of WPCF7_Validation::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/validation.php on line 72

Deprecated: Return type of WPCF7_Validation::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/validation.php on line 59

Deprecated: Return type of WPCF7_Validation::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Volumes/External/Sites/mcq-trainer-wp/web/app/plugins/contact-form-7/includes/validation.php on line 82

With PHP 7.4 security support ending on 28 Nov 2022, what is the plan to get Contact Form 7/PHP 8.1 compatible as upgrade process makes sense to update to latest Initial Release which is PHP 8.1 at time of writing this which whilst possible leaves a mess on screen when working in dev mode.

Appreciate this is a free plugin but our agency is now in overdrive to roll out server upgrades to latest PHP and this plugin is used on a lot of sites.