Bump nodemailer from 6.9.3 to 6.9.14 in /server

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.9.3 to 6.9.14.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](nodemailer/nodemailer@v6.9.3...v6.9.14)

---
updated-dependencies:
- dependency-name: nodemailer
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>