Multiple Knicks fans were arrested Wednesday night while celebrating their hometown team’s thrilling NBA Finals Game 1 victory at Madison Square Garden’s first outdoor watch party permitted by the city in weeks. The celebratory sea of Knicks fanatics packed the streets surrounding the Garden, where they cheered the team’s 105-95 win against the San Antonio Spurs as hundreds of cops looked on — and a waving Mayor Zohran Mamdani was driven by in a black SUV, according to social media clips. The outdoor event had been scrapped for weeks after the city pulled permits over concerns of unruly fan antics....