Use Ruff wherever possible for pre-commit

[fyliu]

Overview

Ruff is supposedly an order of magnitude faster than other static analysis tools, which is why we want to maximize its usage over other checkers that it reimplemented. Shorter pre-commit check time makes commits faster.

Action Items

• look for pre-commit hooks that ruff replaces, and disable them
• enable the corresponding rule sets in ruff
• fix any new complaints

Resources/Instructions

• flake8-django causes pre-commit error #662 (comment)
• working diff file