Bump nodemailer from 6.9.0 to 6.9.1

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.9.0 to 6.9.1.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodemailer/nodemailer/compare/v6.9.0...v6.9.1)

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

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

package.json

@@ -18,7 +18,7 @@
     "joi": "^17.7.0",
     "mongoose": "^6.9.0",
     "mongoose-field-encryption": "^5.0.2",
-    "nodemailer": "^6.9.0",
+    "nodemailer": "^6.9.1",
     "speakeasy": "^2.0.0"
   },
   "devDependencies": {