Drop 3.9 and 3.10, add 3.14

[nlk36701]

Don't bother with 3.9 and 3.10. conda-forge build system has already dropped 3.9 support iirc.

I would add 3.14.
3.14 has some fairly significant changes (GIL). Psi4 and MolSSI are working on getting everything working with 3.14 rn.

Originally posted by @AlexHeide in #28 (comment)

[MitchLahm]

3.9 and 3.10 have been dropped, 3.14 will have to wait until qcelemental supports it as it is required for the symmetry component of CMA

[nlk36701]

See lori's progress regarding support for 3.14.