Update dependency nodemailer to v6.7.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nodemailer (source)	6.7.1 -> 6.7.2

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Release Notes

nodemailer/nodemailer

### [`v6.7.2`](https://togithub.com/nodemailer/nodemailer/blob/master/CHANGELOG.md#​672-2021-11-26) [Compare Source](https://togithub.com/nodemailer/nodemailer/compare/v6.7.1...v6.7.2) - Fix proxies for account verification

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