SAN FRANCISCO — Jesus Sanchez’s first hit of the season was a big one. The center fielder’s seventh-inning RBI single served as the go-ahead run for the Miami Marlins in their 2-1 win over the San Francisco Giants on Saturday at Oracle Park for the team’s first win of the 2022 season. The left-handed hitting Sanchez drove in Brian Anderson, who led off the inning with a double to left-center field, with the hit capping a six-pitch at bat against Giants left-handed reliever Jake McGee, who had 31 saves last year for the National League West division champions. Pablo Lopez held the Giants to one…