NEW YORK—The votes are in. The polls are closed. But the top contenders may have a long, anxious wait ahead of them for results in New York City’s mayoral primary, the first citywide election to use ranked choice voting. With the debut of the ranked voting system and a mountain of absentee ballots still at least a week away from being counted, it could be July before a winner emerges in the Democratic contest. As results trickled in, Brooklyn Borough President Eric Adams was in a tight race with Kathryn Garcia, a former city sanitation commissioner, and Maya Wiley, a former Mayor Bill de Blasio administration lawyer. Former presidential candidate Andrew Yang was further back. After polls closed at 9 p.m., New York City’s Board of Elections began releasing results of votes cast in person, but that initial picture could be misleading because it will only include data on who …