SPOILER ALERT: The following article contains details about the season finale of Brooklyn Nine-Nine. In what could have been its final episode, Brooklyn Nine-Nine delivers a season finale that gives us Nine-Nine-brand humor, familiar story beats, and a “bomb” wedding that makes us thank the TV Gods that this comedy treasure was saved from cancellation. The episode titled “Jake & Amy” is set on wedding day for Jake (Andy Samberg) and Amy (Melissa Fumero) and, of course…