[BUG] Issue due to newest gymnasium==1.1.0

### 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.

Start with the make_env function for Sebulba environments and trace the async_multiagent_worker error while running the PPO Sebulba system. Compare behavior with gymnasium 1.0.0 and 1.1.0; done means the reported error is resolved or the working dependency version is explicitly constrained.

Written by the indexing model from the issue text.