[.github/workflows] Update astral-sh/uv to v0.10.12

[renovate]

{"prProperties": {"branchName": "renovate/astral-sh-uv-0.x", "depName": "astral-sh/uv", "newVersion": "0.10.12"}}

This PR contains the following updates:

Package	Type	Update	Change
astral-sh/uv	uses-with	patch	0.10.11 → 0.10.12

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Release Notes

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

v0.10.12

Compare Source

Released on 2026-03-19.

Python

• Add pypy 3.11.15 (#​18468)
• Add support for using Python 3.6 interpreters (#​18454)

Enhancements

• Include uv's target triple in version report (#​18520)
• Allow comma separated values in --no-emit-package (#​18565)

Preview features

• Show uv audit in the CLI help (#​18540)

Bug fixes

• Improve reporting of managed interpreter symlinks in uv python list (#​18459)
• Preserve end-of-line comments on previous entries when removing dependencies (#​18557)
• Treat abi3 wheel Python version as a lower bound (#​18536)
• Detect hard-float support on aarch64 kernels running armv7 userspace (#​18530)

Documentation

• Add Python 3.15 to supported versions (#​18552)
• Adjust the PyPy note (#​18548)
• Move Pyodide to Tier 2 in the Python support policy (#​18561)
• Move Rust and Python version support out of the Platform support policy (#​18535)
• Update Docker guide with changes from uv-docker-example (#​18558)
• Update the Python version policy (#​18559)

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