Fix simple launcher test error condition (#1911)

This makes the test path on windows where developer mode is not enabled.

---------

Co-authored-by: Micha Reiser <micha@reiser.io>

crates/uv/tests/pip_install.rs

@@ -1609,11 +1609,12 @@ fn launcher_with_symlink() -> Result<()> {
         context.venv.join("Scripts\\simple_launcher.exe"),
         context.temp_dir.join("simple_launcher.exe"),
     ) {
-        if error.kind() == std::io::ErrorKind::PermissionDenied {
-            // Not running as an administrator or developer mode isn't enabled.
-            // Ignore the test
+        // Os { code: 1314, kind: Uncategorized, message: "A required privilege is not held by the client." }
+        // where `Uncategorized` is unstable.
+        if error.raw_os_error() == Some(1314) {
             return Ok(());
         }
+        return Err(error.into());
     }
 
     #[cfg(unix)]