Anheuser-Busch workers will vote starting this weekend on a proposed five-year contract endorsed Wednesday night by their union’s leadership, heading off a possible strike. Voting by approximately 5,000 employees at the company’s 12 U.S. breweries, all members of the Teamsters union, will begin Sunday and continue through Tuesday, the union announced Thursday. One of the breweries is the 73-year-old factory in Newark, an iconic presence off Routes 1 and 9 near Newark Liberty International Airport, where nearly 200 are employed. The current contract expires at 11:59 p.m. Thursday and the union,…