SEATTLE — The Mariners didn’t just survive their 20-game gauntlet out of the All-Star break that featured 13 games against the Yankees and Astros, they punctuated it in style. Mired in a bit of a slump over the past two weeks, Carlos Santana showed why the Mariners still have him on the team and getting at-bats in key situations. The veteran switch-hitter crushed a two-run homer in the seventh inning off Yankees reliever Albert Abreu to provide the game-winning hit in the Mariners’ 4-3 victory over the Yankees. The Mariners took both series from the Yankees during that span and finished with a…