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/console/Formatter/NullOutputFormatter.php

@@ -16,52 +16,34 @@ namespace Symfony\Component\Console\Formatter;
  */
 final class NullOutputFormatter implements OutputFormatterInterface
 {
-    private $style;
+    private NullOutputFormatterStyle $style;
 
-    /**
-     * {@inheritdoc}
-     */
     public function format(?string $message): ?string
     {
         return null;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getStyle(string $name): OutputFormatterStyleInterface
     {
         // to comply with the interface we must return a OutputFormatterStyleInterface
-        return $this->style ?? $this->style = new NullOutputFormatterStyle();
+        return $this->style ??= new NullOutputFormatterStyle();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasStyle(string $name): bool
     {
         return false;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isDecorated(): bool
     {
         return false;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setDecorated(bool $decorated): void
     {
         // do nothing
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setStyle(string $name, OutputFormatterStyleInterface $style): void
     {
         // do nothing