⬆️ Upgrade lib : nikic/php-parser

We were on v3 that is no longer maintained and compatibility is annonced for PHP 7.2.
v4 is active and supports PHP up to 8.0
No problem to update as this is only used in the config editor (\Combodo\iTop\Config\Validator\iTopConfigAstValidator)

lib/nikic/php-parser/lib/PhpParser/Node/Attribute.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+use PhpParser\NodeAbstract;
+
+class Attribute extends NodeAbstract
+{
+    /** @var Name Attribute name */
+    public $name;
+
+    /** @var Arg[] Attribute arguments */
+    public $args;
+
+    /**
+     * @param Node\Name $name       Attribute name
+     * @param Arg[]     $args       Attribute arguments
+     * @param array     $attributes Additional node attributes
+     */
+    public function __construct(Name $name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'args'];
+    }
+
+    public function getType() : string {
+        return 'Attribute';
+    }
+}