Fix again

vello_tests/tests/emoji.rs

diff --git a/vello_tests/tests/emoji.rs b/vello_tests/tests/emoji.rs
index c630db7..16765dc 100644
--- a/vello_tests/tests/emoji.rs
+++ b/vello_tests/tests/emoji.rs
@@ -12,6 +12,8 @@
 )]
 
 use scenes::SimpleText;
+#[cfg(target_os = "macos")]
+use std::sync::Arc;
 use vello::peniko::color::palette;
 use vello::peniko::{Blob, Brush, Font};
 use vello::{Scene, kurbo::Affine, peniko::Fill};