update deps & install rector

Creational/StaticFactory/StaticFactory.php

@@ -2,17 +2,14 @@
 
 namespace DesignPatterns\Creational\StaticFactory;
 
+use InvalidArgumentException;
+
 /**
  * Note1: Remember, static means global state which is evil because it can't be mocked for tests
  * Note2: Cannot be subclassed or mock-upped or have multiple different instances.
  */
 final class StaticFactory
 {
-    /**
-     * @param string $type
-     *
-     * @return Formatter
-     */
     public static function factory(string $type): Formatter
     {
         if ($type == 'number') {
@@ -21,6 +18,6 @@ final class StaticFactory
             return new FormatString();
         }
 
-        throw new \InvalidArgumentException('Unknown format given');
+        throw new InvalidArgumentException('Unknown format given');
     }
 }