N°6934 - Symfony 6.4 - upgrade Symfony bundles to 6.4 (#580)

* Update Symfony lib to version ~6.4.0
* Update code missing return type
* Add an iTop general configuration entry to store application secret (Symfony mandatory parameter)
* Use dependency injection in ExceptionListener & UserProvider classes

lib/symfony/http-kernel/Debug/VirtualRequestStack.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Debug;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+/**
+ * A stack able to deal with virtual requests.
+ *
+ * @internal
+ *
+ * @author Jules Pietri <jules@heahprod.com>
+ */
+final class VirtualRequestStack extends RequestStack
+{
+    public function __construct(
+        private readonly RequestStack $decorated,
+    ) {
+    }
+
+    public function push(Request $request): void
+    {
+        if ($request->attributes->has('_virtual_type')) {
+            if ($this->decorated->getCurrentRequest()) {
+                throw new \LogicException('Cannot mix virtual and HTTP requests.');
+            }
+
+            parent::push($request);
+
+            return;
+        }
+
+        $this->decorated->push($request);
+    }
+
+    public function pop(): ?Request
+    {
+        return $this->decorated->pop() ?? parent::pop();
+    }
+
+    public function getCurrentRequest(): ?Request
+    {
+        return $this->decorated->getCurrentRequest() ?? parent::getCurrentRequest();
+    }
+
+    public function getMainRequest(): ?Request
+    {
+        return $this->decorated->getMainRequest() ?? parent::getMainRequest();
+    }
+
+    public function getParentRequest(): ?Request
+    {
+        return $this->decorated->getParentRequest() ?? parent::getParentRequest();
+    }
+}