[Snyk] Upgrade chalk from 2.4.1 to 2.4.2#2

hex22a wants to merge 2 commits intomastercrftd/postcss:masterfrom

snyk-upgrade-2f15a720ad3432cd1a5da0bc806c1403crftd/postcss:snyk-upgrade-2f15a720ad3432cd1a5da0bc806c1403Copy head branch name to clipboard