fix(shipped-dependencies): update astral-sh/uv (0.12.6 -> 0.12.7)

[ppat-self-hosted-renovate-bot]

This PR contains the following updates:

Package	Update	Change
astral-sh/uv	patch	0.12.6 → 0.12.7

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Release Notes

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

v0.12.7

Compare Source

Released on 2026-08-27.

Python

• Replace managed Python installations when upgrading to a newer build of the same version (#​21323)

Enhancements

• Support Linux s390x, ppc64le, and loongarch64 targets for cross-platform dependency resolution (#​21313)
• Retry downloads with configured credentials when Azure Storage denies anonymous access to an endpoint configured via UV_AZURE_ENDPOINT_URL (#​21318)

Preview features

• Use content-based directory hashes to deduplicate extracted wheels in the cache with the content-addressed-cache preview feature (#​19693)

Bug fixes

• Reject source archives with hash mismatches before persisting their extracted contents to the cache (#​21248)

Other changes

• remove pyx specific features (#​21182, #​21183, #​21184, #​21185, #​21186)

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