[4.0] Invisible recaptcha label

[brianteeman]

Steps to reproduce the issue

Configure and enable the invisible recaptcha plugin

Expected result

Contact form is displayed with the invisible recaptcha and the label is not displayed

Actual result

Label is displayed

System information (as much as possible)

cassiopeia
current main branch

Additional comments

[C-Lodder]

libraries/src/Form/Field/CaptchaField.php

Adding protected $hiddenLabel = true; to the field doesn't work, for some odd reason.
Only way I managed to hide it, was by adding an empty protected function getLabel() {}, but not sure this is the correct approach.

[joomdonation]

Change https://github.com/joomla/joomla-cms/blob/4.0-dev/plugins/captcha/recaptcha_invisible/recaptcha_invisible.php#L172 to

$element['hiddenLabel'] = 'true';

should solve the issue.

[joomdonation]

I made PR #35834 to fix this issue. Please check and give feedback. Closing this issue for now and will re-open later if needed.