Align pre-commit hook versions with pyproject.toml dev dependency ranges

[turbomam]

Context

PR #492 added .pre-commit-config.yaml with pinned revs:

• ruff-pre-commit: v0.15.2
• deptry: 0.23.0

But pyproject.toml specifies looser ranges:

• ruff = ">=0.2.1"
• deptry = ">=0.16.0"

This can cause drift where poetry run ruff behaves differently from pre-commit run ruff.

Action

• Consider adding Renovate or Dependabot config for pre-commit hook updates
• Or pin pyproject.toml dev deps to match pre-commit revs
• Document the chosen strategy (loose ranges + pinned pre-commit is common, but should be intentional)

Ref: #492 (Copilot review comment)