[RLlib](deps): Bump pettingzoo from 1.8.2 to 1.20.1 in /python/requirements/rllib

[dependabot]

Bumps pettingzoo from 1.8.2 to 1.20.1.

Release notes

Sourced from pettingzoo's releases.

1.20.1

Refer to the previous version (1.20.0) for list of changes, this version simply exists due to technical problems with publishing to PyPI.

1.20.0

What's Changed

• Black to pass master CI by @​jjshoots in Farama-Foundation/PettingZoo#734
• Refactor Pytest multiple calls to a single call by @​kir0ul in Farama-Foundation/PettingZoo#731
• Change MPE rendering to use Pygame instead of pyglet #732 by @​WillDudley in Farama-Foundation/PettingZoo#738
• Remove pyglet and buggy dependency in Multiwalker by @​jjshoots in Farama-Foundation/PettingZoo#739
• Add EzPickle to MPE by @​jjshoots in Farama-Foundation/PettingZoo#741
• Fix incorrect observation dict key in documentation by @​bkrl in Farama-Foundation/PettingZoo#743
• Temporarily remove waterworld from tests and also disable environment. by @​jjshoots in Farama-Foundation/PettingZoo#749
• Fix broken atari environment path by @​manu-hoffmann in Farama-Foundation/PettingZoo#747
• Complete Atari Envs path fix by @​jjshoots in Farama-Foundation/PettingZoo#750
• Correct MPE requirements to reflect PR #738 by @​WillDudley in Farama-Foundation/PettingZoo#748

New Contributors

• @​WillDudley made their first contribution in Farama-Foundation/PettingZoo#738
• @​bkrl made their first contribution in Farama-Foundation/PettingZoo#743
• @​manu-hoffmann made their first contribution in Farama-Foundation/PettingZoo#747

Full Changelog: Farama-Foundation/PettingZoo@1.19.1...1.20.0

1.19.1

• Update Gym requirement version

1.19.0

• Streamlined all envs to have consistent folder structures
• Added info as output of reset to be consistent with new Gym API

1.17.0

• Changed metadata naming scheme to match gym. In particular render.modes -> render_modes and video.frames_per_second -> render_fps
• Fixed bad pettingzoo import error messages caused by autodeprication logic

1.16.0

• KAZ: Code rewrite and numerous fixes, added manual control capabililty
• Supports changes to seeding in gym 0.22.0
• Fixed prison state space, bumped version
• Fixed battlefield state space
• Increased default cycles in api tests (making them catch more errors than before)
• Added turn-based to parallel wrapper
• Moved magent render logic to Magent repo

1.15.0

• Bug fixes to KAZ, pistonball, multiwalker, cooperative pong. Versions bumped.
• Removed logo from gather, version bumped.
• Added FPS attribute to all environments to make rendering easier.
• Multiwalker now uses pygame instead of pyglet for rendering
• Renamed to_parallel and from_parallel to aec_to_parallel and parallel_to_aec
• Added is_parallelizable metadata to ensure that the aec_to_parallel wrapper is not misused

... (truncated)

Commits

• 44a5794 Merge pull request #754 from jjshoots/master
• 38f0b37 bump version again
• f3651d2 Merge pull request #753 from jjshoots/master
• 7111c57 update version
• e066ed5 Merge pull request #748 from WillDudley/patch-1
• ce912e2 Merge pull request #750 from jjshoots/master
• c9b72ba black
• f18f64b remove waterworld import
• 2bc0225 remove waterworld from tests
• ca2432e Merge pull request #747 from manu-hoffmann/fix-atari-env-path
• Additional commits viewable in compare view

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[dependabot]

Superseded by #102.