Merge branch '4.4' into 5.2

* 4.4:
  Allow psr/cache v3 but on symfony/cache
  [DI] fix tracking of changes to vendor/ dirs
  Remove EOLed 5.1 branch from PR template
  [HttpKernel] [Kernel] Silence deprecations logs writes
  Update PULL_REQUEST_TEMPLATE.md
  [Mailer][Mime] Update inline part names with newly generated ContentId
  Fixed updating catalogue metadata from intl domain
  [HttpFoundation] Setting `REQUEST_TIME_FLOAT` when constructing a Request object

Author: nicolas-grekas

Request.php

@@ -347,6 +347,7 @@ public static function create(string $uri, string $method = 'GET', array $parame
             'SCRIPT_FILENAME' => '',
             'SERVER_PROTOCOL' => 'HTTP/1.1',
             'REQUEST_TIME' => time(),
+            'REQUEST_TIME_FLOAT' => microtime(true),
         ], $server);
 
         $server['PATH_INFO'] = '';

Session/Storage/Handler/MarshallingSessionHandler.php

@@ -28,47 +28,47 @@ public function __construct(AbstractSessionHandler $handler, MarshallerInterface
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function open($savePath, $name)
     {
         return $this->handler->open($savePath, $name);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function close()
     {
         return $this->handler->close();
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function destroy($sessionId)
     {
         return $this->handler->destroy($sessionId);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function gc($maxlifetime)
     {
         return $this->handler->gc($maxlifetime);
     }
 
     /**
-     * {@inheritdoc}
+     * @return string
      */
     public function read($sessionId)
     {
         return $this->marshaller->unmarshall($this->handler->read($sessionId));
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function write($sessionId, $data)
     {
@@ -83,15 +83,15 @@ public function write($sessionId, $data)
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function validateId($sessionId)
     {
         return $this->handler->validateId($sessionId);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
     public function updateTimestamp($sessionId, $data)
     {