Bump ruff to 0.6.8

[autinerd]

Proposed change

Bump ruff to 0.6.8

https://github.com/astral-sh/ruff/releases/tag/0.6.7
https://github.com/astral-sh/ruff/releases/tag/0.6.8

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• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
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• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

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• This PR fixes or closes issue: fixes #
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[epenet]

LGTM 👍

Note: the changes are related to SIM910 fix astral-sh/ruff#13503