update deps & install rector

Behavioral/Command/AddMessageDateCommand.php

@@ -8,16 +8,11 @@ namespace DesignPatterns\Behavioral\Command;
  */
 class AddMessageDateCommand implements UndoableCommand
 {
-    /**
-     * @var Receiver
-     */
-    private $output;
+    private Receiver $output;
 
     /**
      * Each concrete command is built with different receivers.
      * There can be one, many or completely no receivers, but there can be other commands in the parameters.
-     *
-     * @param Receiver $console
      */
     public function __construct(Receiver $console)
     {

Behavioral/Command/HelloCommand.php

@@ -8,16 +8,11 @@ namespace DesignPatterns\Behavioral\Command;
  */
 class HelloCommand implements Command
 {
-    /**
-     * @var Receiver
-     */
-    private $output;
+    private Receiver $output;
 
     /**
      * Each concrete command is built with different receivers.
      * There can be one, many or completely no receivers, but there can be other commands in the parameters
-     *
-     * @param Receiver $console
      */
     public function __construct(Receiver $console)
     {

Behavioral/Command/Invoker.php

@@ -8,16 +8,11 @@ namespace DesignPatterns\Behavioral\Command;
  */
 class Invoker
 {
-    /**
-     * @var Command
-     */
-    private $command;
+    private Command $command;
 
     /**
      * in the invoker we find this kind of method for subscribing the command
      * There can be also a stack, a list, a fixed set ...
-     *
-     * @param Command $cmd
      */
     public function setCommand(Command $cmd)
     {

Behavioral/Command/Receiver.php

@@ -3,23 +3,17 @@
 namespace DesignPatterns\Behavioral\Command;
 
 /**
- * Receiver is specific service with its own contract and can be only concrete.
+ * Receiver is a specific service with its own contract and can be only concrete.
  */
 class Receiver
 {
-    /**
-     * @var bool
-     */
-    private $enableDate = false;
+    private bool $enableDate = false;
 
     /**
      * @var string[]
      */
-    private $output = [];
+    private array $output = [];
 
-    /**
-     * @param string $str
-     */
     public function write(string $str)
     {
         if ($this->enableDate) {