migration symfony 5 4 (#300)

* symfony 5.4 (diff dev)

* symfony 5.4 (working)

* symfony 5.4 (update autoload)

* symfony 5.4 (remove swiftmailer mailer implementation)

* symfony 5.4 (php doc and split Global accessor class)


### Impacted packages:

composer require php:">=7.2.5 <8.0.0" symfony/console:5.4.* symfony/dotenv:5.4.* symfony/framework-bundle:5.4.* symfony/twig-bundle:5.4.* symfony/yaml:5.4.* --update-with-dependencies

composer require symfony/stopwatch:5.4.* symfony/web-profiler-bundle:5.4.* --dev --update-with-dependencies

lib/symfony/http-foundation/Session/Storage/SessionStorageInterface.php

@@ -24,7 +24,7 @@ interface SessionStorageInterface
     /**
      * Starts the session.
      *
-     * @return bool True if started
+     * @return bool
      *
      * @throws \RuntimeException if something goes wrong starting the session
      */
@@ -33,37 +33,33 @@ interface SessionStorageInterface
     /**
      * Checks if the session is started.
      *
-     * @return bool True if started, false otherwise
+     * @return bool
      */
     public function isStarted();
 
     /**
      * Returns the session ID.
      *
-     * @return string The session ID or empty
+     * @return string
      */
     public function getId();
 
     /**
      * Sets the session ID.
-     *
-     * @param string $id
      */
-    public function setId($id);
+    public function setId(string $id);
 
     /**
      * Returns the session name.
      *
-     * @return mixed The session name
+     * @return string
      */
     public function getName();
 
     /**
      * Sets the session name.
-     *
-     * @param string $name
      */
-    public function setName($name);
+    public function setName(string $name);
 
     /**
      * Regenerates id that represents this storage.
@@ -90,11 +86,11 @@ interface SessionStorageInterface
      *                       to expire with browser session. Time is in seconds, and is
      *                       not a Unix timestamp.
      *
-     * @return bool True if session regenerated, false if error
+     * @return bool
      *
      * @throws \RuntimeException If an error occurs while regenerating this storage
      */
-    public function regenerate($destroy = false, $lifetime = null);
+    public function regenerate(bool $destroy = false, int $lifetime = null);
 
     /**
      * Force the session to be saved and closed.
@@ -117,13 +113,11 @@ interface SessionStorageInterface
     /**
      * Gets a SessionBagInterface by name.
      *
-     * @param string $name
-     *
      * @return SessionBagInterface
      *
      * @throws \InvalidArgumentException If the bag does not exist
      */
-    public function getBag($name);
+    public function getBag(string $name);
 
     /**
      * Registers a SessionBagInterface for use.