⬆️ N°3867 Upgrade php-parser from 3.1.5 to latest version 4.12.0

The 3.1.5 version wasn't maintained anymore and was compatible with PHP 7.2 maximum

lib/nikic/php-parser/lib/PhpParser/Builder.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace PhpParser;
 
@@ -9,5 +9,5 @@ interface Builder
      *
      * @return Node The built node
      */
-    public function getNode();
-}
+    public function getNode() : Node;
+}