[pylint] Implement nonlocal-and-global (E115)

[boolean-light]

Summary

Implement E115 in the issue #970.
Reference to pylint docs: https://pylint.readthedocs.io/en/stable/user_guide/messages/error/nonlocal-and-global.html
Throws an error when a variable name is both declared as global and nonlocal

Test Plan

With nonlocal_and_global.py

[github-actions]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

[charliermarsh]

Thanks!