Gerberas, such as the one seen here, are typically decoys for Russia's version of the Shahed attack drone.Danylo Antoniuk/Ukrinform/NurPhoto via Getty ImagesUkraine is finding advanced antennas on Russia's low-priority foam and plywood Gerbera drones.A top drone advisor said it's a sign Russia has surged production of the anti-jamming component.That's just after Russia was facing a three-to-five-month wait for these antennas last year, he said.U…