[BUG] Issue due to newest gymnasium==1.1.0

[WiemKhlifi]

Describe the bug

The latest working version of Mava with Gymnasium is 1.0.0, while version 1.1.0 has errors.

To Reproduce

Steps to reproduce the behavior:

1. Simply create new conda env and do all the installations.
2. Run pip list | grep gymnasium, the expected installed version will be 1.1.0.
3. Run PPO sebulba system and you'll get the 'expected behavior' below.
4. To fix, do pip install gymnasium==1.0.0 and rerun PPO sebulba.

Expected behavior

In the make_env function for Sebulba environments, we encountered an error from the async_multiagent_worker, as shown in the screenshot.

Possible Solution

Fix the bug given by the newer version or freeze the working version.