Bump nodemailer from 6.8.0 to 6.9.4

[dependabot[bot]]

Bumps nodemailer from 6.8.0 to 6.9.4.

Changelog

Sourced from nodemailer's changelog.

6.9.4 2023-07-19

• Renamed SendinBlue to Brevo

6.9.3 2023-05-29

• Specified license identifier (was defined as MIT, actual value MIT-0)
• If SMTP server disconnects with a message, process it and include as part of the response error

6.9.2 2023-05-11

• Fix uncaught exception on invalid attachment content payload

6.9.1 2023-01-27

• Fix base64 encoding for emoji bytes in encoded words

6.9.0 2023-01-12

• Do not throw if failed to resolve IPv4 addresses
• Include EHLO extensions in the send response
• fix sendMail function: callback should be optional

Commits

• 286dc28 v6.9.4
• 918974f v6.9.4
• 551c7b6 v6.9.3
• 5f81de4 specified license identifier
• 5ff8625 Update README.md
• 9222298 Merge branch 'master' of github.com:nodemailer/nodemailer
• 707f2b1 Process last message from server
• c77d70f feat: added https://forwardemail.net to well-known services
• 19fce2d v6.9.2
• e3cc93a v6.9.1
• Additional commits viewable in compare view

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