Fix np.bool8 error for NumPy 1.24+ compatibility

[kohankhaki]

Fix: Add compatibility patch for deprecated np.bool8 in NumPy ≥1.24

Summary

This PR addresses a compatibility issue with newer versions of NumPy (1.24+) by defining np.bool8 as an alias to np.bool_ when it is missing. This fixes runtime errors in environments that still reference np.bool8.

Problem

When using NumPy ≥1.24, the following error is raised:

AttributeError: module 'numpy' has no attribute 'bool8'

This is because of the removal of the np.bool8 alias, which some environments or wrappers (e.g., from gym-games or older Gym integrations) still use.

Solution

This PR adds the following patch at runtime:

import numpy as np

if not hasattr(np, 'bool8'):
    np.bool8 = np.bool_

References

• NumPy 1.24 Release Notes – Expired Deprecations

[kohankhaki]

@simoninithomas Hi, I have opened this PR on one of the notebooks. It is an easy fix to a version. I'd appreciate this if you can take a look into this.