fix(deps): update dependency ruff to v0.16.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ruff (source, changelog)	==0.16.5 → ==0.16.6

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Release Notes

astral-sh/ruff (ruff)

v0.16.6

Compare Source

Released on 2026-09-03.

Preview features

• Move pytest-fixture-autouse to the restriction category (#​28219)
• [flake8-pytest-style] Add an autofix for PT020 (#​27993)
• [flake8-tidy-imports] Prevent fix loop between TID254 and TID255 (#​28262)
• [isort] Exclude pragma comments from line length calculation (I001) (#​27313)

Bug fixes

• Validate unary expressions when parsing (#​28233)
• [flake8-async, pylint] Recognize builtins.open (ASYNC230, PLW1514) (#​28021)
• [flake8-bugbear] Fix panic on match subjects (B031) (#​27781)
• [flake8-datetimez] Reject tzinfo=None for datetime bounds (DTZ901) (#​28022)
• [flake8-pytest-style] Avoid duplicate PT017 diagnostics (#​27918)
• [ruff] Remove lint.external hint for Ruff-specific suppressions (RUF102) (#​27923)

Rule changes

• [flake8-use-pathlib] Add display-only fix for os.listdir (PTH208) (#​28027)

Documentation

• Add another example and glob reference for lint.per-file-ignores (#​28106)
• Add duplicate work guidance (#​28229)
• [flake8-async] Document thread offloading (ASYNC240) (#​28008)
• [pyupgrade] Clarify default encoding argument handling (UP012) (#​27315)

Other changes

• Allow unary plus in match patterns on Python 3.15 (#​28231)

Contributors

• @​flying-sheep
• @​pikammmmm
• @​fly1d
• @​waterWang
• @​Pierre-Sassoulas
• @​ntBre
• @​jelle-openai
• @​ericbuehl
• @​tjkuson
• @​AbhinavMir
• @​Whning0513
• @​chirizxc

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[github-actions]

🤖 Keepalive Loop Status

PR #57 | Agent: Codex | Iteration 0/5

Current State

Metric	Value
Iteration progress	[----------] 0/5
Action	wait (missing-agent-label)
Disposition	skipped (transient)
Gate	failure
Tasks	0/10 complete
Timeout	45 min (default)
Timeout usage	1m elapsed (4%, 44m remaining)
Keepalive	❌ disabled
Autofix	❌ disabled

🔍 Failure Classification

| Error type | infrastructure |
| Error category | resource |
| Suggested recovery | Confirm the referenced resource exists (repo, PR, branch, workflow, or file). |

[stranske]

Superseded by the Workflows-owned canonical Ruff 0.16.6 repair in stranske/Workflows#3344. This PR changes only the consumer pyproject pin and has failing Gate checks; the source repair updates the shared pin contract and will propagate through the generated sync lane.

[renovate]

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