[Feature Request] Support for Gymnasium

Motivation

Gymnasium is a fork of the OpenAI Gym project by that same people that maintained Gym for the last 18 months.
Our understanding from OpenAI is that they are not planning on maintaining Gym currently therefore, we would recommend using Gymnasium.

For more information about this, see our announcement - https://farama.org/Announcing-The-Farama-Foundation

Solution

Currently, the Gymnasium and Gym are identical repos so should be compatible between the two projects.

try:
   import gymnasium as gym
except ImportError:
   import gym

However in the future, we are planning on adding a new feature improvements that this repo would be interested in