fix lint

Author: molikto

crates/bevy_ecs/src/hierarchy_propagate.rs

@@ -54,6 +54,8 @@
 //! }
 //! ```
 
+#[cfg(feature = "std")]
+use crate::prelude::*;
 use crate::{
     change_detection::{DetectChanges, DetectChangesMut},
     component::Mutable,
@@ -63,8 +65,6 @@ use crate::{
     system::ParamSet,
 };
 #[cfg(feature = "std")]
-use crate::prelude::*;
-#[cfg(feature = "std")]
 pub use parallel::hierarchy_propagate_complex;
 #[cfg(not(feature = "std"))]
 pub use serial::hierarchy_propagate_complex;