Update dependency ruff to v0.6.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ruff (source, changelog)	0.6.3 -> 0.6.4

---

Release Notes

astral-sh/ruff (ruff)

v0.6.4

Compare Source

Preview features

• [flake8-builtins] Use dynamic builtins list based on Python version (#​13172)
• [pydoclint] Permit yielding None in DOC402 and DOC403 (#​13148)
• [pylint] Update diagnostic message for PLW3201 (#​13194)
• [ruff] Implement post-init-default (RUF033) (#​13192)
• [ruff] Implement useless if-else (RUF034) (#​13218)

Rule changes

• [flake8-pyi] Respect pep8_naming.classmethod-decorators settings when determining if a method is a classmethod in custom-type-var-return-type (PYI019) (#​13162)
• [flake8-pyi] Teach various rules that annotations might be stringized (#​12951)
• [pylint] Avoid no-self-use for attrs-style validators (#​13166)
• [pylint] Recurse into subscript subexpressions when searching for list/dict lookups (PLR1733, PLR1736) (#​13186)
• [pyupgrade] Detect aiofiles.open calls in UP015 (#​13173)
• [pyupgrade] Mark sys.version_info[0] < 3 and similar comparisons as outdated (UP036) (#​13175)

CLI

• Enrich messages of SARIF results (#​13180)
• Handle singular case for incompatible rules warning in ruff format output (#​13212)

Bug fixes

• [pydocstyle] Improve heuristics for detecting Google-style docstrings (#​13142)
• [refurb] Treat sep arguments with effects as unsafe removals (FURB105) (#​13165)

---

Configuration

📅 Schedule: Branch creation - "every weekend" in timezone US/Eastern, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.