build(deps): bump async from 3.2.3 to 3.2.4#4

dependabot[bot] wants to merge 1 commit intomasterjmwiese/stencil-cli:masterfrom

dependabot/npm_and_yarn/async-3.2.4jmwiese/stencil-cli:dependabot/npm_and_yarn/async-3.2.4Copy head branch name to clipboard