Support Gymnasium 1.0.0

[stefanbschneider]

Gymnasium 1.0.0 introduces some breaking API changes that currently lead to errors with mobile-env: #56

Update mobile-env to support Gymnasium 1.0.0 and update requirements.

[stefanbschneider]

Test with recently released ray 2.39, which introduces support for Gymnasium 1 in Ray: https://github.com/ray-project/ray/releases/tag/ray-2.39.0

[stefanbschneider]

I started work here: https://github.com/stefanbschneider/mobile-env/tree/issue57

Basically, need to access anything that's linked to the unwrapped mobile-env environment via env.unwrapped. gymnasium.make() returns a wrapped Env with only standard interface.

BLOCKED by sb3 support for gymansium 1.0.0 atm.

[stefanbschneider]

Merged a PR to use the unwrapped gym env. What's missing for the mobile-env 2.1 release is: Support for the latest Ray 2.39+ and a new, upcoming SB3 that supports gym 1.