Run php-cs-fixer

Author: nicolas-grekas

Data/Util/RingBuffer.php

@@ -64,8 +64,6 @@ public function offsetGet($key)
 
     /**
      * {@inheritdoc}
-     *
-     * @return void
      */
     public function offsetSet($key, $value): void
     {
@@ -81,8 +79,6 @@ public function offsetSet($key, $value): void
 
     /**
      * {@inheritdoc}
-     *
-     * @return void
      */
     public function offsetUnset($key): void
     {