Remove sys.exit(0) from mujoco renderer when closing environment

[rodrigodelazcano]

destroy window mujoco rendering

remove sys.exit

Description

Remove sys.exit(0) from mujoco renderer when closing environment.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

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Checklist:

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

[jkterry1]

Is this what caused the previous bugs in the old version of the mujoco environments where rendering impacted determinism that were never diagnosed?

[rodrigodelazcano]

No, that is still an incognito. This avoids terminating the code execution when running and closing multiple environments such as in testing

[pseudo-rnd-thoughts]

LGTM