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/config/ConfigCacheInterface.php

@@ -22,19 +22,15 @@ interface ConfigCacheInterface
 {
     /**
      * Gets the cache file path.
-     *
-     * @return string
      */
-    public function getPath();
+    public function getPath(): string;
 
     /**
      * Checks if the cache is still fresh.
      *
      * This check should take the metadata passed to the write() method into consideration.
-     *
-     * @return bool
      */
-    public function isFresh();
+    public function isFresh(): bool;
 
     /**
      * Writes the given content into the cache file. Metadata will be stored
@@ -43,6 +39,8 @@ interface ConfigCacheInterface
      * @param string                   $content  The content to write into the cache
      * @param ResourceInterface[]|null $metadata An array of ResourceInterface instances
      *
+     * @return void
+     *
      * @throws \RuntimeException When the cache file cannot be written
      */
     public function write(string $content, array $metadata = null);