chore(deps): update dependency astral-sh/uv to v0.9.26

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
astral-sh/uv	uses-with	patch	0.9.25 → 0.9.26

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Release Notes

astral-sh/uv (astral-sh/uv)

v0.9.26

Compare Source

Released on 2026-01-15.

Python

• Add CPython 3.15.0a5

Enhancements

• Add a hint to update uv when a managed Python download is not found (#​17461)
• Improve cache initialization failure error message (#​17469)
• Improve error message for abi3 wheels on free-threaded Python (#​17442)
• Add support for --no-sources-package (#​14910)

Preview features

• Add METADATA.json and WHEEL.json in uv build backend (#​15510)
• Add support for GCS request signing (#​17474)
• Adjust the process ulimit to the maximum allowed on startup (#​17464)

Bug fixes

• Lock to avoid concurrent refresh of pyx tokens (#​17479)

Documentation

• Add linting and formatting instructions to the CONTRIBUTING guide (#​17470)
• Avoid rendering pyproject.toml examples for more system-level settings (#​17462)

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