Update ghcr.io/astral-sh/uv Docker tag to v0.7.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/astral-sh/uv	final	patch	0.7.2 -> 0.7.3

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Release Notes

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

v0.7.3

Compare Source

Enhancements

• Add --dry-run support to uv self update (#​9829)
• Add --show-with to uv tool list to list packages included by --with (#​13264)
• De-duplicate fetched index URLs (#​13205)
• Support more zip compression formats: bzip2, lzma, xz, zstd (#​13285)
• Add support for downloading GraalPy (#​13172)
• Improve error message when a virtual environment Python symlink is broken (#​12168)
• Use fs_err for paths in symlinking errors (#​13303)
• Minify and embed managed Python JSON at compile time (#​12967)

Preview features

• Build backend: Make preview default and add configuration docs (#​12804)
• Build backend: Allow escaping in globs (#​13313)
• Build backend: Make builds reproducible across operating systems (#​13171)

Configuration

• Add python-downloads-json-url option for uv.toml to configure custom Python installations via JSON URL (#​12974)

Bug fixes

• Check nested IO errors for retries (#​13260)
• Accept musllinux_1_0 as a valid platform tag (#​13289)
• Fix discovery of pre-release managed Python versions in range requests (#​13330)
• Respect locked script preferences in uv run --with (#​13283)
• Retry streaming downloads on broken pipe errors (#​13281)
• Treat already-installed base environment packages as preferences in uv run --with (#​13284)
• Avoid enumerating sources in errors for path Python requests (#​13335)
• Avoid re-creating virtual environment with --no-sync (#​13287)

Documentation

• Remove outdated description of index strategy (#​13326)
• Update "Viewing the version" docs (#​13241)

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