Set union types to class properties in the helpers and components examples (#7763)

* Update components.rst

Set union types to class properties in the component example

* Update helpers.rst

Set union types to class properties in the helpers examples

Author: Indianer3c

en/controllers/components.rst

@@ -234,7 +234,7 @@ You can load other components by adding them to the `$components` property::
     class CustomComponent extends Component
     {
         // The other component your component uses
-        protected $components = ['Existing'];
+        protected array $components = ['Existing'];
 
         // Execute any other additional setup for your component.
         public function initialize(array $config): void

en/views/helpers.rst

@@ -122,7 +122,7 @@ your helper requires. For example::
         /**
          * @var array<string, mixed>
          */
-        protected $_defaultConfig = [
+        protected array $_defaultConfig = [
             'errorClass' => 'error',
             'templates' => [
                 'label' => '<label for="{{for}}">{{content}}</label>',
@@ -268,7 +268,7 @@ just as you would in a controller::
 
     class LinkHelper extends Helper
     {
-        protected $helpers = ['Html'];
+        protected array $helpers = ['Html'];
 
         public function makeEdit($title, $url)
         {
@@ -317,7 +317,7 @@ If you would like to access a View variable inside a helper, you can use
 
     class AwesomeHelper extends Helper
     {
-        public $helpers = ['Html'];
+        public array $helpers = ['Html'];
 
         public function someMethod()
         {