Add gymnasium-like interface wrappers

[joshgreaves]

We also want to make ARES accessible to people more familiar with gymnasium.

Steps:

• Fully review the environment interface in gymnasium.
• Work out the correct mapping between current ARES and gymnasium.
• Decide how this should be presented in the library.
• Make the think.

Proposal for representing it in the library:

tasks = load_swebench_env_tasks("some-id")

with environments.SweBenchEnv(...) as dm_env:
    gym_env = environments.wrap_as_gym(dm_env)
    ...

Pros:

• Encourages uniform use (dm_env version)
• Enables gym-like for those who want it
• Reduces number of classes; use the same helper for every type of dm_env.
  Cons:
• If you use gym-like interface an extra line of boilerplate