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/form.svg

@@ -1 +1,10 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path fill="#AAA" d="M20.5 4H18V2.5c0-.8-.7-1.5-1.5-1.5h-9C6.7 1 6 1.7 6 2.5V4H3.5C2.7 4 2 4.7 2 5.5v16c0 .8.7 1.5 1.5 1.5h17c.8 0 1.5-.7 1.5-1.5v-16c0-.8-.7-1.5-1.5-1.5zM9 4h6v1H9V4zm10 16H5V7h1.1c.2.6.8 1 1.4 1h9c.7 0 1.2-.4 1.4-1H19v13zm-2-9c0 .6-.4 1-1 1H8c-.6 0-1-.4-1-1s.4-1 1-1h8c.6 0 1 .4 1 1zm0 3c0 .6-.4 1-1 1H8c-.6 0-1-.4-1-1s.4-1 1-1h8c.6 0 1 .4 1 1zm-4 3c0 .6-.4 1-1 1H8c-.6 0-1-.4-1-1s.4-1 1-1h4c.6 0 1 .4 1 1z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" data-icon-name="icon-tabler-forms" 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>Cache</title>
+    <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
+    <path d="M12 3a3 3 0 0 0 -3 3v12a3 3 0 0 0 3 3"></path>
+    <path d="M6 3a3 3 0 0 1 3 3v12a3 3 0 0 1 -3 3"></path>
+    <path d="M13 7h7a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-7"></path>
+    <path d="M5 7h-1a1 1 0 0 0 -1 1v8a1 1 0 0 0 1 1h1"></path>
+    <path d="M17 12h.01"></path>
+    <path d="M13 12h.01"></path>
+</svg>