build(deps): bump engine.io from 6.4.1 to 6.4.2#2

dependabot[bot] wants to merge 1 commit intomainsarvex/angular-cli:mainfrom

dependabot/npm_and_yarn/engine.io-6.4.2sarvex/angular-cli:dependabot/npm_and_yarn/engine.io-6.4.2Copy head branch name to clipboard