Bump nodemailer and smtp-server in /Chapter04/server-smtp#2

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dependabot/npm_and_yarn/Chapter04/server-smtp/nodemailer-and-smtp-server-6.9.9PacktPublishing/Node.js-Cookbook-Fifth-Edition:dependabot/npm_and_yarn/Chapter04/server-smtp/nodemailer-and-smtp-server-6.9.9Copy head branch name to clipboard