Update to laravel 7

vendor/symfony/http-foundation/Session/Storage/Proxy/SessionHandlerProxy.php

@@ -21,7 +21,7 @@ class SessionHandlerProxy extends AbstractProxy implements \SessionHandlerInterf
     public function __construct(\SessionHandlerInterface $handler)
     {
         $this->handler = $handler;
-        $this->wrapper = ($handler instanceof \SessionHandler);
+        $this->wrapper = $handler instanceof \SessionHandler;
         $this->saveHandlerName = $this->wrapper ? ini_get('session.save_handler') : 'user';
     }
 
@@ -36,64 +36,72 @@ class SessionHandlerProxy extends AbstractProxy implements \SessionHandlerInterf
     // \SessionHandlerInterface
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function open($savePath, $sessionName)
     {
-        return (bool) $this->handler->open($savePath, $sessionName);
+        return $this->handler->open($savePath, $sessionName);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function close()
     {
-        return (bool) $this->handler->close();
+        return $this->handler->close();
     }
 
     /**
-     * {@inheritdoc}
+     * @return string|false
      */
+    #[\ReturnTypeWillChange]
     public function read($sessionId)
     {
-        return (string) $this->handler->read($sessionId);
+        return $this->handler->read($sessionId);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function write($sessionId, $data)
     {
-        return (bool) $this->handler->write($sessionId, $data);
+        return $this->handler->write($sessionId, $data);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function destroy($sessionId)
     {
-        return (bool) $this->handler->destroy($sessionId);
+        return $this->handler->destroy($sessionId);
     }
 
     /**
-     * {@inheritdoc}
+     * @return int|false
      */
+    #[\ReturnTypeWillChange]
     public function gc($maxlifetime)
     {
-        return (bool) $this->handler->gc($maxlifetime);
+        return $this->handler->gc($maxlifetime);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function validateId($sessionId)
     {
         return !$this->handler instanceof \SessionUpdateTimestampHandlerInterface || $this->handler->validateId($sessionId);
     }
 
     /**
-     * {@inheritdoc}
+     * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function updateTimestamp($sessionId, $data)
     {
         return $this->handler instanceof \SessionUpdateTimestampHandlerInterface ? $this->handler->updateTimestamp($sessionId, $data) : $this->write($sessionId, $data);