Bump nodemailer from 6.9.15 to 6.9.16

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.9.15 to 6.9.16.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](nodemailer/nodemailer@v6.9.15...v6.9.16)

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

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

Author: dependabot[bot]

package-lock.json

@@ -20,7 +20,7 @@
     "multer": "^1.4.4",
     "node-cmd": "^5.0.0",
     "node-fetch": "^2.7.0",
-    "nodemailer": "^6.9.13",
+    "nodemailer": "^6.9.16",
     "nodemon": "^3.1.7",
     "path": "^0.12.7",
     "pg": "^8.13.1",