abjad 3.6 and python 3.10

[jgart]

Hi Guixers,

I'd like to update our abjad package to the later version of 3.6 but it
only supports python 3.10.

https://github.com/Abjad/abjad/releases/tag/v3.6

When will guix master branch see python 3.10 more or less?

all best,

jgart