[FEATURE REQUEST] Upgrade CityLearn to later Python version and gymnasium environment

[kingsleynweye]

Is your feature request related to a problem? Please describe.

• I am unable to use CityLearn with it's current setup with newer versions of stable-baselines3 and RLlib.
• Also later Python versions do not successfully install CityLearn given its current requirements, possibly limiting its reach and use in Colab for some users.

Describe the solution you'd like

• Upgrade CityLearn to work with Python version as new as 3.12
• Upgrade environment to gymansium environment

Describe alternatives you've considered NIL

Additional context NIL