MOBILE-2925: Cache the npm cache directory
MOBILE-2925: Cache the npm cache directory

reskit/moodlemobile,reskit/moodlemobile,dpalou/moodlemobile2,saman222/moodlemobile2,moodlehq/moodlemobile2,saman222/moodlemobile2,saman222/moodlemobile2,dpalou/moodlemobile2,moodlehq/moodlemobile2,reskit/moodlemobile,dpalou/moodlemobile2,reskit/moodlemobile,moodlehq/moodlemobile2,moodlehq/moodlemobile2,saman222/moodlemobile2,FMCorz/moodlemobile2,moodlehq/moodlemobile2,reskit/moodlemobile,moodlehq/moodlemobile2,FMCorz/moodlemobile2,saman222/moodlemobile2,reskit/moodlemobile