BOSTON — Nestor Cortes spent the first six years of his career in the minors adapting and adjusting. The crafty left-hander found ways to get outs, fearing if he didn’t he would get released. Now, Cortes has to dig deep back into that and figure out how to adjust again. Cortes needs to figure out how to get the Red Sox out. Friday night, the star of the early part of this season could not get out of the fourth inning, spared a loss by Josh Donaldson and the offense as the Yankees beat Boston, 12-5, at Fenway Park. It was the third straight win and fourth out of five for the Yankees (61-23) aga…