Drop python 3.10 and add python 3.14

[andrewdnolan]

No description provided.

[xylar]

@andrewdnolan , could you comment on the motivation to drop python 3.10? I don't think we were planning to drop it yet in polaris but we could if there's a reason to. pyproj might be such a reason.

[andrewdnolan]

@xylar No real motivation. I figured if we were adding support for python 3.14, we may as well cycle out 3.10. But, if polaris plans to support python 3.10 for a little while longer, than I'm happy to keep it for now.

[xylar]

I agree, it would be tidier. We can discuss it.

I think it's good for packages with downstream dependencies to be a little cautious about dropping support because they kind of force it on their dependencies.

And python 3.14 support is still rolling out and hasn't reached mpas-tools yet. So polaris would be a bit squeezed at the moment.