Fix clippy warnings

Author: bilelmoussaoui

examples/dialog_async/main.rs

@@ -50,7 +50,7 @@ async fn dialog<W: IsA<gtk::Window>>(window: W) {
         .modal(true)
         .buttons(gtk::ButtonsType::Close)
         .text("You answered")
-        .secondary_text(&format!("Your answer: {answer:?}"))
+        .secondary_text(format!("Your answer: {answer:?}"))
         .build();
 
     info_dialog.run_future().await;

gtk/src/lib.rs

@@ -5,7 +5,7 @@
 #![allow(clippy::wrong_self_convention)]
 #![doc = include_str!("../README.md")]
 #![allow(clippy::type_complexity)]
-#![allow(clippy::derive_hash_xor_eq)]
+#![allow(clippy::derived_hash_with_manual_eq)]
 #![allow(clippy::too_many_arguments)]
 #![allow(clippy::missing_safety_doc)]
 #![allow(clippy::new_without_default)]