Jim Carrey reprises his role as Dr. Robotnik in “Sonic the Hedgehog 3” after previously pledging to retire from acting. “That might have been hyperbole,” Carrey said, laughing, as he spoke to AP Entertainment on Tuesday night at the “Sonic the Hedgehog 3” premiere in London. The “Eternal Sunshine of the Spotless Mind” actor did, however, provide radio-host-style narration throughout …