Fix iterator related clippy style lint violations (#36437)

Release Notes:

- N/A

crates/language_tools/src/key_context_view.rs

@@ -98,9 +98,7 @@ impl KeyContextView {
             cx.notify();
         });
         let sub2 = cx.observe_pending_input(window, |this, window, cx| {
-            this.pending_keystrokes = window
-                .pending_input_keystrokes()
-                .map(|k| k.iter().cloned().collect());
+            this.pending_keystrokes = window.pending_input_keystrokes().map(|k| k.to_vec());
             if this.pending_keystrokes.is_some() {
                 this.last_keystrokes.take();
             }