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/validator.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="M19.5 22.5H4.3a2.9 2.9 0 0 1-2.9-2.9V4.4a2.9 2.9 0 0 1 2.9-2.9h14.2a1 1 0 0 1 0 2H4.3a.9.9 0 0 0-.9.9v15.2a.9.9 0 0 0 .9.9h15.2a.9.9 0 0 0 1-.9v-8.3a1 1 0 1 1 2 0v8.3a2.9 2.9 0 0 1-3 2.9zM13 17.3L22.9 6a1.5 1.5 0 1 0-2.3-2L12 14 8 9.1A1.5 1.5 0 0 0 5.7 11l5 6.3a1.5 1.5 0 0 0 1.2.5 1.5 1.5 0 0 0 1.1-.5z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" data-icon-name="icon-tabler-checklist" width="24" height="24" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
+    <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
+    <path d="M9.615 20h-2.615a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8"></path>
+    <path d="M14 19l2 2l4 -4"></path>
+    <path d="M9 8h4"></path>
+    <path d="M9 12h2"></path>
+</svg>