Updated test upgrader_device_test.dart to handle the new isiOSAppOnMac property for the iOS platform from changes in device_info_plus 11.2.0.

Author: larryaasen

Diff for: test/upgrader_device_test.dart

@@ -143,6 +143,7 @@ Map _iosInfo({required String baseOS}) {
     'utsname': iosUtsnameMap,
     'systemName': 'systemName',
     'isPhysicalDevice': false,
+    'isiOSAppOnMac': false,
     'systemVersion': baseOS,
     'localizedModel': 'localizedModel',
     'identifierForVendor': 'identifierForVendor',