build(deps): bump acorn from 5.7.3 to 5.7.4#2

dependabot[bot] wants to merge 1 commit intomasterbaianat/leaps:masterfrom

dependabot/npm_and_yarn/acorn-5.7.4baianat/leaps:dependabot/npm_and_yarn/acorn-5.7.4Copy head branch name to clipboard