## Summary
This PR deprecates the `--isolated` flag. The treatment varies across
the APIs:
- For non-preview APIs, we warn but treat it as equivalent to
`--no-config`.
- For preview APIs, we warn and ignore it, with two exceptions...
- For `tool run` and `run` specifically, we don't even warn, because we
can't differentiate the command-specific `--isolated` from the global
`--isolated`.
## Summary
After #5337, `fetch-download-metadata.py` fetches not just from
`python-build-standalone`, so updates the workflow to
`sync-python-releases.yml`.
Also includes `crates/uv-python/download-metadata.json` in `add-paths`.
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Co-authored-by: Zanie Blue <contact@zanie.dev>
