Render a fake recaptcha and add support to fail it when environment is skipped.

When the environment is skipped the recaptcha is still rendered.
In order to have a better test isolation and not contact any external service I've faked the recaptcha and added the possibility to fail the captcha when the environment is skipped.

This change does not alter the previous behavior it only adds the possibility to fail the captcha if we type "fail" in the recaptcha response field if the environment is skipped.