[ENH] - Bump min required version to 3.10

### Feature description

`conda-store` is dropping support for `python<3.10`: https://github.com/conda-incubator/conda-store/pull/973. Let's upgrade `jupyterlab-conda-store` to do the same.

### Value and/or benefit

Keeping up with python releases! Slick type annotations! More speed!

### Anything else?

_No response_