Bump engine.io and browser-sync in /Exercises/Desafio 4#43

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dependabot/npm_and_yarn/Exercises/Desafio-4/engine.io-and-browser-sync-6.2.1WillMuzyka/Launchbase:dependabot/npm_and_yarn/Exercises/Desafio-4/engine.io-and-browser-sync-6.2.1Copy head branch name to clipboard