action_space.sample() OOMs

[manuel-delverme]

    import gymnasium as gym
    import browsergym.core  # register the openended task as a gym environment

    env = gym.make('browsergym/openended')
    env.action_space.sample()

[gasse]

Thanks Manuel for reporting this!

We can just deactivate sample(), it is kind of pointless to sample uniformly from a text space anyway.
Here is the PR, can you give it a look? #218