Python 3.11,3.12 conda install fails.

[benjeffery]

Seems sgkit can't be installed on 3.12 due to cbgen:

Pinned packages:

• python 3.12.*

Could not solve for environment specs The following package could not be installed └─ sgkit 0.8.0 is installable and it requires └─ cbgen with the potential options ├─ cbgen [1.0.0|1.0.1] would require │ └─ python >=3.7,<3.8.0a0 , which can be installed; ├─ cbgen [1.0.0|1.0.1] would require │ └─ python >=3.8,<3.9.0a0 , which can be installed; ├─ cbgen [1.0.0|1.0.1] would require │ └─ python >=3.9,<3.10.0a0 , which can be installed; └─ cbgen 1.0.1 would require └─ python >=3.10,<3.11.0a0 , which can be installed.