Modernize dependencies: Python 3.13, numpy 2.x, gymnasium compliance, pytest migration #170
Description
Hi there,
Firstly thank you for this excellent repo - I am a graduate student in Computer Science (ML) and this has been invaluable in learning Multi-agent RL!
One of the challenges is that all of the dependancies on this repo are pinned at 2022 versions and so I wanted to ask if you'd be interested in a PR (which I have submitted) to bring this fully up to date with all dependant packages. I think this will reduce friction for other students and continue to allow this great work to remain relevant.
BTW - if you'd prefer that this upgrade is done in smaller chunks I'd be more than happy to do this in smaller steps (to give you the time and space to review if needed) - at the moment the full upgrade is done as one big PR so if you'd like to go that way please just reject and let me know.
BTW2 - upgrading to gymnasium from Gym does introduce some breaking changes which I've annotated on the PR - but these are super quick to incorporate into projects so this felt like a good trade.
Would you be open to this uplift - if so, looking forward to working with you on this.
Many thanks
Sean