Login issue with Recaptcha

Dear developer of the Maintenance plugin,
I love this plugin but I just had a big problem accessing my site.
By default I have activated Google Recaptcha and since there are no modules to enable the Recaptcha functionality, the result is that the login fails automatically … no matter how many times you try to change your account password, it fails because it is not possible to execute the captcha since there is no module to enter the recaptcha secret keys.
I personally tested this problem, and I discovered that by disabling the plugin and logging in from wordpress, solving the captcha, the login works.
Please add the ability to integrate recaptcha with Maintenance, thanks a lot.