WEST SACRAMENTO, Calif. — JJ Wetherholt hit a two-run homer, José Fermín drove in two with a double and the St. Louis Cardinals beat the Athletics 6-4 on Tuesday night. The Cardinals snapped a two-game skid and improved their major league-best road record to 14-7. They have yet to lose three straight road games this season. The Athletics plan to move to Las Vegas in 2028, when they are scheduled to open play at a new ballpark on the Strip. Andre Pallante (4-3) struck out four and allowed four hits and three runs in five innings. Four relievers followed, with Riley O’Brien working around a leadoff walk in the ninth for his 12th save. Wetherholt’s shot to right off Joel Kuhnel in the sixth inning put the Cardinals ahead 6-3. St. Louis scored four times in the first inning. Jordan Walker drove in the first run with a single, Fermín’s double brought in two and Yohel Pozo singled to score Fermín. The A’s answered in the second when Nick Kurtz hit an RBI single to extend his on-base streak to 35 games.…