style: correct code style violations

Author: DannyvdSluijs

src/JsonSchema/Constraints/UndefinedConstraint.php

@@ -355,7 +355,6 @@ protected function validateOfProperties(&$value, $schema, JsonPointer $path, $i
             $allErrors = [];
             $matchedSchemas = [];
             $startErrors = $this->getErrors();
-
             foreach ($schema->oneOf as $oneOf) {
                 try {
                     $this->errors = [];

src/JsonSchema/Tool/DeepCopy.php

@@ -11,6 +11,7 @@ class DeepCopy
 {
     /**
      * @param mixed $input
+     *
      * @return mixed
      */
     public static function copyOf($input)