Beloved actress, activist, and “Golden Girls” alum Betty White is celebrating her 99th birthday on Jan. 17. The star has revealed how she plans to mark the milestone birthday, with activities including seeing a few close friends and feeding the ducks. White stays as active as she can but admitted to Entertainment Tonight that her daily routine has changed since the onset of the pandemic. “You probably didn’t ask, but I’ll tell you anyway,” the comedienne ventured. “What am I doing for my birthday? Running a mile each morning has been curtailed by COVID, so I am working on getting ‘The Pet Set’ re-released and feeding the two ducks who come to visit me every day.” Far from retired, White has been a major advocate for the re-release of “The Pet Set,” a syndicated talk show that first aired in 1971, hosted by White, in which celebrities would stop by …