test(deps): update dependency uv to v0.4.8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
uv (source, changelog)	0.4.7 -> 0.4.8

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Release Notes

astral-sh/uv (uv)

v0.4.8

Compare Source

Enhancements

• Add support for dynamic cache keys (#​7136)
• Allow .dist-info names with dashes for post releases (#​7208)
• Use type hints in code from uv init (#​7225)
• Treat .tgz the same as .tar.gz (#​7201)
• Direct users towards uv venv to create a virtual environment (#​7188)
• Improve error message for uv init already init-ed (#​7198)

Performance

• Avoid batch prefetching for un-optimized registries (#​7226)
• Avoid iteration for singleton selections (#​7195)

Bug fixes

• Avoid extra newlines in debug logging for source builds (#​7174)
• Prune unreachable packages from --universal output (#​7209)
• Respect exclusion when collecting workspace members (#​7175)
• Use path file instead of sitecustomize.py (#​7161)
• Replace incorrect --source and --binary flags with correct --sdist and --wheel flags in uv build (#​7156)

Documentation

• Document support for UV_INSTALL_DIR (#​7107)
• List all supported sdist formats (#​7168)

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