ipv6 support for behaw

Hi! this a message for the beehaw admins, not sure if i'm doing it at the right place.

First of all thanks for this instance, it has been running smoothly since i joined without any issue

I don't want to add more pressure to you so take this as a simple suggestion, a good to have.

I noticed that this instance doesn't support ipv6 yet, i can give support to you for free about it if you need it