Update to conda 4.14, cpython 3.10, pypy 3.9

[isuruf]

Closes #323

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[isuruf]

@mattip, we are updating base python in miniforge to 3.10. For pypy should we be going for 3.8 or 3.9?

[mattip]

I think 3.9 will be supported longer, so might as well use it. I don't remember python-3.9-specific issues for quite a while now.

[mattip]

There is a package conflict for pypy on the mamba builds. I am not sure which package it is, but maybe there is a missing migration somewhere.

[hmaarrfk]

mamba itself apparently :D conda-forge/mamba-feedstock#158