U.S. automaker General Motors Co., Alphabet Inc.’s Google, and its self-driving auto-technology company Waymo on Thursday joined the companies no longer attending the Consumer Electronics Show (CES) in person early next month due to rising COVID-19 infections. GM Chief Executive Mary Barra had been scheduled to give a keynote speech at the annual conference on Jan. 5, during which the company would have shown its electric Silverado pickup truck for the first time. Barra will still make the speech and presentation remotely, a spokesman said. “We have decided to move to an all-digital approach with our activation at CES 2022 in January,” the U.S. automaker said in a statement. “We are continuing with our plans on Jan. 5 to share our significant company news, including the reveal of the Chevrolet Silverado EV.” A Google spokesperson said in a statement, “After careful consideration we have decided to withhold from having a …