upgrade min sdk; run formatter

packages/flutter_mozilla_components/example/lib/main.dart

@@ -21,13 +21,12 @@ class MyAppState extends State<MyApp> {
           title: const Text('Native Fragment Example'),
           actions: [
             MenuAnchor(
-              builder:
-                  (context, controller, child) => IconButton(
-                    onPressed: () {
-                      controller.open();
-                    },
-                    icon: const Icon(Icons.menu),
-                  ),
+              builder: (context, controller, child) => IconButton(
+                onPressed: () {
+                  controller.open();
+                },
+                icon: const Icon(Icons.menu),
+              ),
               menuChildren: [
                 MenuItemButton(
                   onPressed: () async {

packages/flutter_mozilla_components/example/pubspec.yaml

@@ -5,7 +5,7 @@ description: "Demonstrates how to use the flutter_mozilla_components plugin."
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
 environment:
-  sdk: '>=3.7.0 <4.0.0'
+  sdk: '>=3.8.0 <4.0.0'
 
 dependencies:
   flutter: