Robbie Ray capped a dominant June by allowing only one unearned run over eight innings to lead the Giants to a 3-2 win over the Braves in Sunday afternoon’s series finale at Oracle Park. It marked the second consecutive start of at least eight innings for Ray, who improved to 4-0 with a 1.36 ERA over five starts this month. The 34-year-old veteran has permitted only two unearned runs over his past three appearances, becoming the first Giants pitcher to allow no earned runs over a three-game span since Matt Cain from Sept. 2-14, 2006. Ray’s marvelous stretch has coincided with a notable shift to his pitch usage. He has been known primarily for his four-seam fastball over his career, but he used that pitch sparingly (7%) against the Braves, opting to instead incorporate more of his sinker (38%), changeup (26%) and slider (23%). “It was kind of the game plan going into the game to throw more sinkers than four-seams,” Ray said. “Just kind of picking spots for the \[four-seam\