Apply Fixes on StyleCI

Author: cassianogf

src/Artistas/PagSeguroClient.php

@@ -203,7 +203,7 @@ public function notification($notificationCode, $notificationType = 'transaction
               'email' => $this->email,
               'token' => $this->token,
             ], $this->url['notifications'].$notificationCode, false);
-        else if ($notificationType == 'preApproval') {
+        } elseif ($notificationType == 'preApproval') {
             return $this->sendTransaction([
               'email' => $this->email,
               'token' => $this->token,