Provide challenge environment file

[IlyaOrson]

Noticed these were missing from a fresh environment.

[MaximilianB2]

Hi Ilya,

These packages are not required by pc-gym to run and hence were removed to allow for a faster installation.

[IlyaOrson]

Makes sense. The example notebook does not run without them though. We could add them as optional dependencies maybe or leave them in the condo environment file just for the setup of the challenge and examples.

[josetorraca]

So Ilya, I was able to run the tests without them, except for sb3. Because, of course, you need some kind of library for the RL training part.
But honestly, I don't see why we need jupyterlab, torch, and mkdocs.
I had this conversation with Max last Friday, I think it would be better to do your suggestion of adding these libraries as an extra-installation.

[IlyaOrson]

Sounds good to me. Shall we add them as optional dependencies and in environment files then?

[IlyaOrson]

Environments to run the example notebooks or challenge

mamba env create -f environment.yml

pixi init --import environment.yml