Fix Bruschetta typo. (#6568)

examples/flutter_gallery/lib/demo/pesto_demo.dart

@@ -555,7 +555,7 @@ class RecipeStep {
 
 final List<Recipe> kPestoRecipes = <Recipe>[
   const Recipe(
-    name: 'Pesto Bruchetta',
+    name: 'Pesto Bruschetta',
     author: 'Peter Carlsson',
     ingredientsImagePath: 'packages/flutter_gallery_assets/pesto/quick.png',
     description: 'Bask in greens this season by trying this delightful take on traditional bruschetta. Top with a dollop of homemade pesto, and season with freshly ground sea salt and pepper.',

examples/flutter_gallery/test/pesto_test.dart

@@ -30,11 +30,11 @@ void main() {
     await tester.pump(); // Launch pesto
     await tester.pump(const Duration(seconds: 1)); // transition is complete
 
-    await tester.tap(find.text('Pesto Bruchetta'));
+    await tester.tap(find.text('Pesto Bruschetta'));
     await tester.pump(); // Launch the recipe page
     await tester.pump(const Duration(seconds: 1)); // transition is complete
 
-    await tester.scroll(find.text('Pesto Bruchetta'), const Offset(0.0, -300.0));
+    await tester.scroll(find.text('Pesto Bruschetta'), const Offset(0.0, -300.0));
     await tester.pump();
 
     Navigator.pop(find.byType(Scaffold).evaluate().single);