Bump fabric example to [email protected] (#3277)

## Description

Bumping `FabricExample` app to `[email protected]` to test with
the next React Native version. I'll make all necessary changes to the
package in the following PR.

FabricExample/__tests__/App-test.tsx

@@ -1,9 +1,9 @@
 import React from 'react';
-import { it } from '@jest/globals';
+import ReactTestRenderer from 'react-test-renderer';
+import App from '../src/App';
 
-// Note: test renderer must be required after react-native.
-import renderer from 'react-test-renderer';
-
-it('renders correctly', () => {
-  renderer.create(<App />);
+test('renders correctly', async () => {
+  await ReactTestRenderer.act(() => {
+    ReactTestRenderer.create(<App />);
+  });
 });

FabricExample/android/build.gradle

@@ -4,8 +4,8 @@ buildscript {
         minSdkVersion = 24
         compileSdkVersion = 35
         targetSdkVersion = 34
-        ndkVersion = "26.1.10909125"
-        kotlinVersion = "1.9.24"
+        ndkVersion = "27.1.12297006"
+        kotlinVersion = "2.0.21"
         isGHExampleApp = true
     }
     repositories {

FabricExample/ios/FabricExample/AppDelegate.swift

@@ -0,0 +1,30 @@
+import UIKit
+import React
+import React_RCTAppDelegate
+import ReactAppDependencyProvider
+
+@main
+class AppDelegate: RCTAppDelegate {
+  override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
+    self.moduleName = "FabricExample"
+    self.dependencyProvider = RCTAppDependencyProvider()
+
+    // You can add your custom initial props in the dictionary below.
+    // They will be passed down to the ViewController used by React Native.
+    self.initialProps = [:]
+
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+
+  override func sourceURL(for bridge: RCTBridge) -> URL? {
+    self.bundleURL()
+  }
+
+  override func bundleURL() -> URL? {
+#if DEBUG
+    RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: "index")
+#else
+    Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+#endif
+  }
+}

FabricExample/ios/Podfile

@@ -27,12 +27,7 @@ target 'FabricExample' do
     # An absolute path to your application root.
     :app_path => "#{Pod::Config.instance.installation_root}/.."
   )
-
-  target 'FabricExampleTests' do
-    inherit! :complete
-    # Pods for testing
-  end
-
+
   post_install do |installer|
     # https://github.com/facebook/react-native/blob/main/packages/react-native/scripts/react_native_pods.rb#L197-L202
     react_native_post_install(