chore(deps): update backend-python-runtime

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
alpine (source)	final	minor	3.22 → 3.24
docker/dockerfile	syntax	pinDigest	→ 87999aa
ghcr.io/astral-sh/uv	stage	minor	0.11-python3.14-trixie-slim → 0.12-python3.14-trixie-slim
python (source)	final	digest	bc389f7 → a7fb1e6

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Release Notes

astral-sh/uv (ghcr.io/astral-sh/uv)

v0.12

Released on 2026-08-05.

Python

• Add CPython 3.15.0rc1 (#​20948)
• Add CPython 3.14.7 (#​20971)

Enhancements

• Ensure diagnostic hints end with a newline to prevent malformed terminal output (#​20959)

Preview features

• Audit one or all installed tools with uv tool audit (#​20921)
• Report physically reclaimed disk space during cache cleanup with the cache-physical-space preview feature (#​20925)

Configuration

• Add UV_RUN_RLIMIT_NOFILE to set the open-file limit for commands launched by uv run (#​20926)

Performance

• Speed up uv.lock parsing for wheel entries (#​20881)
• Speed up uv.lock parsing for source distribution entries (#​20882)
• Speed up filename extraction from distribution URLs (#​20879)
• Reduce filesystem metadata lookups during bytecode compilation (#​20928)
• Reuse file metadata when building source distributions (#​20927)

Bug fixes

• Preserve compatibility with older uv versions when recording artifact sizes in cached wheels and source distributions (#​20963)
• Avoid including workspace-root default dependency groups when syncing or exporting a selected workspace member unless explicitly requested (#​20930)

Documentation

• Separate build and publish jobs in the GitHub Actions publishing guide (#​20946)
• Ensure the GitHub Actions publishing example waits for the build job to finish (#​20957)
• Correct typos in the Docker integration guide (#​20970)

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