ROSAMOND >> It was serious business on the Willow Springs International Raceway on Saturday for celebrities like Alfonso Ribeiro, “Terminator 2” actor Robert Patrick and “Battlestar Galactica” star Tricia Helfer.They were among the many celebrities zipping around a twisty track during practice for the upcoming Toyota Grand Prix of Long Beach Pro/Celebrity Race.As he hit speeds of more than 100 mph on the straightaways, Ribeiro, who is racing in the Pro-Division on April 18 as part of the 41st annual race, seemed to be one of the drivers to beat during practice, despite a dusty spin-out.“