Added cache clear after config import

Author: Marcelo Vani

src/Command/Site/UpdateCommand.php

@@ -91,6 +91,7 @@ protected function execute(InputInterface $input, OutputInterface $output) {
     if ($this->getDrupalVersion() === 8) {
       $config_commands[] = sprintf('cd %s', $this->shellPath($this->getWebRoot()));
       $config_commands[] = 'drupal config:import';
+      $config_commands[] = 'drupal cache:rebuild';
       $config_command = implode(' && ', $config_commands);
 
       $this->io->commentBlock($config_command);