chore(package): update nyc to version 6.6.1 (#691)
chore(package): update nyc to version 6.6.1 (#691)

https://greenkeeper.io/
bgrins/tofino,bgrins/tofino,victorporof/tofino,mozilla/tofino,mozilla/tofino,bgrins/tofino,victorporof/tofino,mozilla/tofino,jsantell/tofino,jsantell/tofino,jsantell/tofino,jsantell/tofino,mozilla/tofino,bgrins/tofino