## Summary

Update the MSRV to 1.94.0, the pinned Rust toolchain to 1.96.0, and the
trampoline nightly toolchain to remain compatible with the new MSRV.

As a part of #19604 I noticed that we were only testing WSL2 which is
not usable on Windows 2022 which is still fairly common.

## Summary

This is the minimal implementation for fetching and running `ty check`.
Currently it doesn't attempt to provide member selection information to
ty, specifying semantics that are essentially "this downloads and runs
ty in cwd, you can pass arbitrary flags to ty yourself".

This is therefore reasonably far from the potential vision of "check is
a monolithic linter command", but might still be worth landing to
iterate on, because most of the implementation is still what we want --
download ty, run sync, invoke ty.

## Test Plan

Zanie and I reviewed it and various tests were added. Not sweating the details too hard so we can iterate.

Following #19600

Update activation scripts with upstream fixes, PR-by-PR.

Related to #6426, but doesn't fix
those cases.

Signed-off-by: William Woodruff <william@yossarian.net>

## Summary

Closes #19636. Fixes #19635.

## Test Plan

NFC.

Signed-off-by: William Woodruff <william@yossarian.net>

## Summary

This is a followup to #19605 that moves `uv check` towards more of a
design where ty is "just one of the things uv check does", primarily by
removing support for forwarding arbitrary arguments with `--`.

## Test Plan

Mostly this is just removing functionality.

To avoid Socket URL and exclude-newer injection for now