Bump nodemailer from 6.4.17 to 6.4.18

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.4.17 to 6.4.18.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](nodemailer/nodemailer@v6.4.17...v6.4.18)

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

Author: dependabot-preview[bot]

package.json

@@ -28,7 +28,7 @@
     "mime": "^2.4.7",
     "mongodb": "^3.6.3",
     "multer": "^1.4.2",
-    "nodemailer": "^6.4.17",
+    "nodemailer": "^6.4.18",
     "pg": "^8.5.1",
     "rate-limiter-flexible": "^2.1.16",
     "redis": "^3.0.2",

yarn.lock

@@ -5151,10 +5151,10 @@ node-releases@^1.1.58:
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.58.tgz#8ee20eef30fa60e52755fcc0942def5a734fe935"
   integrity sha512-NxBudgVKiRh/2aPWMgPR7bPTX0VPmGx5QBwCtdHitnqFE5/O8DeBXuIMH1nwNnw/aMo6AjOrpsHzfY3UbUJ7yg==
 
-nodemailer@^6.4.17:
-  version "6.4.17"
-  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.4.17.tgz#8de98618028953b80680775770f937243a7d7877"
-  integrity sha512-89ps+SBGpo0D4Bi5ZrxcrCiRFaMmkCt+gItMXQGzEtZVR3uAD3QAQIDoxTWnx3ky0Dwwy/dhFrQ+6NNGXpw/qQ==
+nodemailer@^6.4.18:
+  version "6.4.18"
+  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.4.18.tgz#2788c85792844fc17befda019031609017f4b9a1"
+  integrity sha512-ht9cXxQ+lTC+t00vkSIpKHIyM4aXIsQ1tcbQCn5IOnxYHi81W2XOaU66EQBFFpbtzLEBTC94gmkbD4mGZQzVpA==
 
 normalize-package-data@^2.3.2, normalize-package-data@^2.3.4, normalize-package-data@^2.5.0:
   version "2.5.0"