Signing channel

[jgarte]

Hi Efraim,

Would you consider signing this channel so that I can add it to toys search?

Or if you prefer to not have the channel searchable on toys that's cool too but just thought I'd ask in case.

[Millak]

I'm not sure what it's missing. It may be that I hadn't pushed the keyring branch to the various forges, but I've taken care of that now. I already have the .guix-authorizations and the .guix-channel.