[bug#47273] mtxclient -> 0.4.1 Nheko -> 0.8.1

[Nicolò Balzarotti]

"K I" <gitlabcanada@runbox.com> writes:

> Hello,
>
> I do not know my way around git so I am offering this code to someone if they 
> want to add it to guix proper. There were only slight changes needed.
>
> Both packages built and ran for me.
>
Please, have a look at https://issues.guix.gnu.org/46013 and
https://issues.guix.gnu.org/46012.

Michael Rohleder and I submitted it just after the release, but it's
still waiting to be merged

Thanks, Nicolò