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/Tester/Constraint/CommandIsSuccessful.php

@@ -16,33 +16,21 @@ use Symfony\Component\Console\Command\Command;
 
 final class CommandIsSuccessful extends Constraint
 {
-    /**
-     * {@inheritdoc}
-     */
     public function toString(): string
     {
         return 'is successful';
     }
 
-    /**
-     * {@inheritdoc}
-     */
     protected function matches($other): bool
     {
         return Command::SUCCESS === $other;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     protected function failureDescription($other): string
     {
         return 'the command '.$this->toString();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     protected function additionalFailureDescription($other): string
     {
         $mapping = [