NEW YORK — After COVID-stricken Sarah Palin was spotted dining at two Manhattan restaurants and walking maskless on city streets, Mayor Adams’ office issued a warning to New Yorkers who cross her infected path. “We encourage any New Yorker who came into contact with Sarah Palin to get tested, just as we encourage all New Yorkers to get tested regularly, especially those who believe they may have been exposed to COVID-19,” said Adams spokesman Jonah Allon. Palin, the former Alaska governor and avowed anti-vaxxer, was spotted Wednesday night at Elio’s, an Upper East Side Italian eatery, just day…