chore(deps): update dependency uv to v0.7.8

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
uv (source, changelog)	0.7.7 -> 0.7.8

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Release Notes

astral-sh/uv (uv)

v0.7.8

Python

We are reverting most of our Python changes from uv 0.7.6 and uv 0.7.7 due to
a miscompilation that makes the Python interpreter behave incorrectly, resulting
in spurious type-errors involving str. This issue seems to be isolated to
x86_64 Linux, and affected at least Python 3.12, 3.13, and 3.14.

The following changes that were introduced in those versions of uv are temporarily
being reverted while we test and deploy a proper fix for the miscompilation:

• Add Python 3.14 on musl
• free-threaded Python on musl
• Add Python 3.14.0a7
• Statically link libpython into the interpreter on Linux for a significant performance boost

See the issue for details.

Documentation

• Remove misleading line in pin documentation (#​13611)

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