Captcha API AAR no longer available because of JCenter closure

Hi! I’m trying to make a custom captcha, but it seems like the CAPTCHA API library: ‘com.urbandroid.sleep:captcha-support’ isn’t distributed anymore.

I can’t manually download the AAR file from [1] either. Could it be because JCenter - the place where this package was hosted- closed a few months ago? The github page [2] doesn’t have the pre-built binaries too.

Although I know that I could build the existing source code myself or just import the source code of the library, I’ve been struggling to do so. The current library uses an old version of gradle and doesn’t use the androidx, which is tripping a novice like me over.
Could you perhaps make a binary of the library available again? Perhaps through the github?

[1] https://mvnrepository.com/artifact/com.urbandroid.sleep/captcha-support
[2] GitHub - urbandroid-team/sleep-captcha-support: Sleep as Android - Captcha support library