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/Exception/ResolverNotFoundException.php

@@ -0,0 +1,33 @@
+<?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\Exception;
+
+class ResolverNotFoundException extends \RuntimeException
+{
+    /**
+     * @param string[] $alternatives
+     */
+    public function __construct(string $name, array $alternatives = [])
+    {
+        $msg = sprintf('You have requested a non-existent resolver "%s".', $name);
+        if ($alternatives) {
+            if (1 === \count($alternatives)) {
+                $msg .= ' Did you mean this: "';
+            } else {
+                $msg .= ' Did you mean one of these: "';
+            }
+            $msg .= implode('", "', $alternatives).'"?';
+        }
+
+        parent::__construct($msg);
+    }
+}