bug fix :numpy has no attribute 'bool8'

[nocoding03]

Description

I change gym/utils/passive_env_checker.py: if not isinstance(terminated, (bool, np.bool8)): to if not isinstance(terminated, (bool, np.bool)): because module 'numpy' has no attribute 'bool8'.

Fixes # 3294

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

Screenshots

Checklist:

• [x] I have run the pre-commit checks with pre-commit run --all-files (see CONTRIBUTING.md instructions to set it up)
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes