Auto-exec compatible uv version when required-version doesn't match

[aarondobbing]

Implements #11065

Summary

When a project has a required-version constraint in its pyproject.toml
that doesn't match the current uv version, automatically use uv tool run
to execute a compatible version instead of exiting with an error.

This allows developers with newer uv versions to still work with projects
that need older versions, without having to manually use uv tool run
for each command to ensure a consistent development experience.

:chef_kiss:

Test Plan

Unit tests covering the cases described in issue #11065

Verified locally in sample python projects matching the described issues outlined by @mjpieters

[zanieb]

Cool! I'll give this a look.

Did you explore calling into the tool_run implementation directly instead of spawning a subprocess?

[aarondobbing]

I didn't explore it - Not familiar with the uv project in general, was just looking to pick a first issue that would support me in my day to day 😅

Totally makes sense as an approach - Will give it a spin locally and throw in an update up if I can get something tenable together later.

Thanks for feedback 🙏

[zanieb]

Hey! Just wondering if you're still poking at this?

[zanieb]

Closing as stale, feel free to pick this back up!