Bump acorn from 6.3.0 to 6.4.1 in /bs-dashboard#9

dependabot[bot] wants to merge 1 commit intomastersayi65/dashboard:masterfrom

dependabot/npm_and_yarn/bs-dashboard/acorn-6.4.1sayi65/dashboard:dependabot/npm_and_yarn/bs-dashboard/acorn-6.4.1Copy head branch name to clipboard