Fix typo (#60832)

packages/flutter/lib/src/material/popup_menu.dart

diff --git a/packages/flutter/lib/src/material/popup_menu.dart b/packages/flutter/lib/src/material/popup_menu.dart
index edc1166..2e40407 100644
--- a/packages/flutter/lib/src/material/popup_menu.dart
+++ b/packages/flutter/lib/src/material/popup_menu.dart
@@ -234,7 +234,7 @@
   /// touches.
   final bool enabled;
 
-  /// The minimum height height of the menu item.
+  /// The minimum height of the menu item.
   ///
   /// Defaults to [kMinInteractiveDimension] pixels.
   @override