Fixed code style following styleCI

Author: vuongxuongminh

tests/TestCase.php

@@ -26,9 +26,9 @@ protected function getEnvironmentSetUp($app)
                     'driver' => 'viettel',
                     'key' => 'test',
                     'secret' => 'test',
-                    'bucket' => 'test'
+                    'bucket' => 'test',
                 ],
-            ]
+            ],
         ]);
     }