Update ruby installation for centos test vm
Update ruby installation for centos test vm

AlexHopsworks/karamel-chef_dela,AlexHopsworks/karamel-chef_dela,AlexHopsworks/karamel-chef_dela,hopshadoop/karamel-chef,hopshadoop/karamel-chef,hopshadoop/karamel-chef,hopshadoop/karamel-chef,AlexHopsworks/karamel-chef_dela