Bump engine.io, socket.io and browser-sync in /angular5#57

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dependabot/npm_and_yarn/angular5/engine.io-and-socket.io-and-browser-sync-3.6.1DeegC/UTC:dependabot/npm_and_yarn/angular5/engine.io-and-socket.io-and-browser-sync-3.6.1Copy head branch name to clipboard