Remove numpy np.bool deprecation notice

[stepjam]

Proposed change(s)

Removes the numpy deprecation notice regarding np.bool. Here we instead use bool.

/usr/local/lib/python3.8/dist-packages/mlagents_envs/rpc_utils.py:376: DeprecationWarning: `np.bool` is a deprecated alias for the builtin `bool`. To silence this warning, use `bool` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.bool_` here.

Useful links (Github issues, JIRA tickets, ML-Agents forum threads etc.)

N/A

Types of change(s)

• [x] Bug fix
• [ ] New feature
• [ ] Code refactor
• [ ] Breaking change
• [ ] Documentation update
• [ ] Other (please describe)

Checklist

N/A (removes deprecation)

• [ ] Added tests that prove my fix is effective or that my feature works
• [ ] Updated the changelog (if applicable)
• [ ] Updated the documentation (if applicable)
• [ ] Updated the migration guide (if applicable)

Other comments

[CLAassistant]

All committers have signed the CLA.

[alex-mccarthy-unity]

Closing: the deprecation fix was merged in as part of https://github.com/Unity-Technologies/ml-agents/commit/f9b7399338ec164ac5447f634b9a9af04538467e .

Thanks for your contributions!