chore(package): update sheetify to version 4.1.2
chore(package): update sheetify to version 4.1.2

http://greenkeeper.io/

Signed-off-by: Yoshua Wuyts <042dc4512fa3d391c5170cf3aa61e6a638f84342@yoshuawuyts.com>

aknuds1/bankai,yoshuawuyts/bankai,choojs/bankai