Update dependency nodemailer to v6.8.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nodemailer (source)	6.7.6 -> 6.8.0

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Release Notes

nodemailer/nodemailer

### [`v6.8.0`](https://togithub.com/nodemailer/nodemailer/blob/HEAD/CHANGELOG.md#​680-2022-09-28) [Compare Source](https://togithub.com/nodemailer/nodemailer/compare/v6.7.8...v6.8.0) - Add DNS timeout (huksley) - add dns.REFUSED (lucagianfelici) ### [`v6.7.8`](https://togithub.com/nodemailer/nodemailer/blob/HEAD/CHANGELOG.md#​678-2022-08-11) [Compare Source](https://togithub.com/nodemailer/nodemailer/compare/v6.7.7...v6.7.8) - Allow to use multiple Reply-To addresses ### [`v6.7.7`](https://togithub.com/nodemailer/nodemailer/blob/HEAD/CHANGELOG.md#​677-2022-07-06) [Compare Source](https://togithub.com/nodemailer/nodemailer/compare/v6.7.6...v6.7.7) - Resolver fixes

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