chore(deps): update dependency uv to ~=0.12.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
uv (source, changelog)	~=0.12.5 → ~=0.12.6

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Release Notes

astral-sh/uv (uv)

v0.12.6

Compare Source

Released on 2026-08-25.

Python

• Update CPython to use OpenSSL 3.5.8 and libffi 3.4.8 #​21295)

Enhancements

• Report cache-cleaning space savings from filesystem block allocation and avoid double-counting hard links (#​21261)
• Limit warnings about unbounded uv_build requirements to source-distribution builds (#​21078)
• Display byte counts below 1 KiB without a fractional part (#​21237)

Preview features

• Add uv workspace metadata --sync --exact to remove packages outside the selected resolution (#​21117)
• Add the artifact-hash-filtering preview feature to make uv pip compile --generate-hashes honor --only-binary and --no-binary (#​21235)
• Respect package-specific exclude-newer cutoffs when uv check selects its ty executable (#​21227)
• Preserve virtual-environment hints from tar-codec source-distribution errors when the base interpreter is outside a bin directory (#​21146)

Performance

• Enable profile-guided optimization for Linux x86-64 release binaries (#​21001)
• Enable profile-guided optimization for Windows x86-64 release binaries (#​21003)
• Enable profile-guided optimization for macOS ARM64 release binaries (#​21002)
• Enable profile-guided optimization for Linux ARM64 release binaries (#​21004)
• Speed up syncing projects with many activated conflict items by reusing their encoded representation (#​21148)

Bug fixes

• Allow explicit uv build and non-editable first-party workspace packages when no-build is enabled (#​21294)
• Reuse configured index credentials during uv tool upgrade when the tool receipt references the same index (#​21275)
• Ensure full 40-character Git commit pins resolve to the requested object instead of a SHA-named branch (#​21224)
• Prevent TLS segfaults in riscv64 musl release binaries (#​21158)
• Preserve dependencies selected by recursive extras when markers mix production and extra conditions (#​21181)
• Preserve version constraints from transitively referenced recursive extras (#​21209)
• Resolve repository-relative Git archive dependencies inside the checkout during the initial uv sync (#​21264)
• Return an error instead of panicking when a bearer token cannot be encoded as an HTTP header (#​21282)
• Do not misclassify package URLs ending in .py as local script paths (#​21144)
• Use directory creation times consistently across libc implementations for directory cache-keys entries (#​21137)
• Promote human-readable sizes to the next unit at rounding boundaries (#​21136)

Other changes

• Add Python 3.15 release-candidate Docker images (#​21293)
• Raise the minimum supported Rust version to 1.96 and update the repository toolchain to Rust 1.98 (#​21258)

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