Fix Rubucop

Author: atejada

lib/nylas/resources/webhooks.rb

@@ -22,7 +22,7 @@ module WebhookTrigger
     MESSAGE_OPENED = "message.opened"
     MESSAGE_LINK_CLICKED = "message.link_clicked"
     THREAD_REPLIED = "thread.replied"
-    FOLDER_CREATED = "folder.created" 
+    FOLDER_CREATED = "folder.created"
     FOLDER_UPDATE = "folder.updated"
     FOLDER_DELETED  = "folder.deleted"
   end