add use_self clippy lint (#8325)

crates/tokio-util/src/event_stream.rs

@@ -20,7 +20,7 @@ where
     /// Creates a new `EventStream`.
     pub fn new(receiver: tokio::sync::broadcast::Receiver<T>) -> Self {
         let inner = tokio_stream::wrappers::BroadcastStream::new(receiver);
-        EventStream { inner }
+        Self { inner }
     }
 }