Treat ARM wheels as higher-priority than universal (#1843)

## Summary

We need to take care to keep wheel tags in "priority order" (e.g., we
should prefer ARM wheels over universal wheels). However... it looks
like we've had a `.sort()` in here all along, that risks throwing off
the ordering?

Closes https://github.com/astral-sh/uv/issues/1840.

## Test Plan

ensure that `rlax` uses the ARM wheel rather than the universal wheel:

- `cargo run venv`
- `cargo run pip install rlax`
- `import rlax`

crates/platform-tags/src/lib.rs

@@ -154,7 +154,6 @@ impl Tags {
             "none".to_string(),
             "any".to_string(),
         ));
-        tags.sort();
         Ok(Self::new(tags))
     }