build(deps): bump nodemailer from 6.9.3 to 6.9.4

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.9.3 to 6.9.4.
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](nodemailer/nodemailer@v6.9.3...v6.9.4)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -72,7 +72,7 @@
     "jsonwebtoken": "^9.0.1",
     "mailparser": "^3.6.5",
     "marked": "^5.1.1",
-    "nodemailer": "^6.9.3",
+    "nodemailer": "^6.9.4",
     "rfc2047": "^4.0.1"
   },
   "engines": {