NEW YORK — There are no known security threats related to this weekend’s New Year’s Eve celebration in Times Square, but the New York Police Department is gearing up for the possibility that thousands of pro-Palestine protesters will be demonstrating nearby, Mayor Eric Adams and police officials said Friday. In an afternoon security briefing outside the NYPD’s Times Square substation, Adams said the Police Department is still on high alert, citing an incident at last year’s Times Square ball drop event where a Maine teenager allegedly attacked three NYPD officers with a machete. “There are no …