Add composer install to the deployment

.gitlab-ci/deployer/deploy.php

@@ -57,6 +57,7 @@ set('php', '/opt/php/php70/bin/php');
 set('typo3_console', 'vendor/bin/typo3cms');
 
 task('typo3', function() {
+    run('cd {{release_path}} && composer install');
     run('cd {{release_path}} && {{php}} {{typo3_console}} install:generatepackagestates');
     run('cd {{release_path}} && {{php}} {{typo3_console}} install:extensionsetupifpossible');
 });