Update to laravel 7

vendor/symfony/css-selector/Node/CombinedSelectorNode.php

@@ -57,9 +57,6 @@ class CombinedSelectorNode extends AbstractNode
         return $this->selector->getSpecificity()->plus($this->subSelector->getSpecificity());
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function __toString(): string
     {
         $combinator = ' ' === $this->combinator ? '<followed>' : $this->combinator;