Carpinteria High baseball came from behind to earn a 6-5 extra-inning win over Channel Islands on Wednesday in Oxnard. With the victory, the Warriors (15-5, 7-4 Citrus Coast League) punched their ticket into the CIF-SS playoffs with a third-place finish in their league. Channel Islands built up a 5-0 lead after three innings, but Carpinteria chipped away with a run in the fourth, one in the fifth and two in the sixth to cut the deficit to 5-4. I…