Use real file path when available in ruff server (#11800)

## Summary

As-is, we're using the URL path for all files, leading us to use paths
like:

```
/c%3A/Users/crmar/workspace/fastapi/tests/main.py
```

This doesn't match against per-file ignores and other patterns in Ruff
configuration.

This PR modifies the LSP to use the real file path if available, and the
virtual file path if not.

Closes https://github.com/astral-sh/ruff/issues/11751.

## Test Plan

Ran the LSP on Windows. In the FastAPI repo, added:

```toml
[tool.ruff.lint.per-file-ignores]
"tests/**/*.py" = ["F401"]
```

And verified that an unused import was ignored in `tests` after this
change, but not before.

crates/ruff_server/src/fix.rs

@@ -71,7 +71,7 @@ pub(crate) fn fix_all(
         result: LinterResult { error, .. },
         ..
     } = ruff_linter::linter::lint_fix(
-        query.virtual_file_path(),
+        &query.virtual_file_path(),
         package,
         flags::Noqa::Enabled,
         UnsafeFixes::Disabled,