Description

RLlib's multiagency training expects a certain format for the PettingZoo info dict.

[X] Bug fix (non-breaking change which fixes an issue)
[ ] New feature (non-breaking change which adds functionality)
[X] Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes.

[X] Unit tests pytest --cov bsk_rl --cov-report term-missing tests/unittest
[X] Integrated tests pytest --cov bsk_rl --cov-report term-missing tests/integration
[X] Documentation builds cd docs; make html

[X] My code follows the style guidelines of this project (passes Black, ruff, and isort)
[X] I have performed a self-review of my code
[X] I have commented my code in hard-to-understand areas
[X] I have made corresponding changes to the documentation and release notes
[X] Commit messages are atomic, are in the form Issue #XXX: Message and have a useful message
[X] My changes generate no new warnings
[X] I have added tests that prove my fix is effective or that my feature works
[X] If I changed an example ipynb, I have locally rebuilt the documentation