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/web-profiler-bundle/Resources/views/Icon/menu.svg

@@ -1 +1,7 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path fill="#AAA" d="M2.6 17.5h18.8c.9 0 1.6.7 1.6 1.6v1.5c0 1-.7 1.6-1.6 1.6H2.6c-.9 0-1.6-.7-1.6-1.6v-1.5c0-.9.7-1.6 1.6-1.6zM1 11.2v1.6c0 .9.7 1.6 1.6 1.6h18.8c.9 0 1.6-.7 1.6-1.6v-1.6c0-.8-.7-1.6-1.6-1.6H2.6A1.6 1.6 0 0 0 1 11.2zm0-7.8v1.5a1.6 1.6 0 0 0 1.6 1.6h18.8c.9 0 1.6-.7 1.6-1.6V3.4c0-1-.7-1.6-1.6-1.6H2.6A1.6 1.6 0 0 0 1 3.4z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" data-icon-name="icon-tabler-menu-2" width="24" height="24" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round" role="img">
+    <title>Menu</title>
+    <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
+    <line x1="4" y1="6" x2="20" y2="6"></line>
+    <line x1="4" y1="12" x2="20" y2="12"></line>
+    <line x1="4" y1="18" x2="20" y2="18"></line>
+</svg>