Win Python 3.10 solve error mentioning Python 2.7

[zmoon]

Noticed here, the message looks like

Mamba failed to solve:
 - matplotlib-base
 - seaborn
 - numpy
 - pyresample
 - python_abi 3.10.* *_cp310
 - pandas
 - xarray
 - cartopy
 - dask
 - pydecorate
 - python >=3.10,<3.11.0a0
 - python-stratify

with channels:

The reported errors are:
- Encountered problems while solving:
-   - nothing provides vc 9.* needed by python-2.7.12-0

This is only on Windows

[zmoon]

Interestingly, in https://github.com/conda-forge/monet-feedstock/pull/16 with the first failure, it was a different strange "nothing provides"

- nothing provides numpy 1.10* needed by cartopy-0.13.1-np110py27_0

(cartopy v0.13.1 is from Dec 2015) but then trying a second time it was the same one as in the first comment here, i.e.

- nothing provides vc 9.* needed by python-2.7.12-0