### Search before asking - [X] I have searched the MuZero [issues](https://github.com/werner-duvaud/muzero-general/issues) and found no similar feature requests. ### Description Update gym package to gymnasium ### Additional context OpenAI has changed it's library name from gym to gymnasium. It would be great if this package would also update it's requirements
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Description
Update gym package to gymnasium
Additional context
OpenAI has changed it's library name from gym to gymnasium. It would be great if this package would also update it's requirements