Bump nodemailer from 6.4.2 to 6.4.16

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.4.2 to 6.4.16.
- [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/v6.4.2...v6.4.16)

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

package-lock.json

@@ -231,9 +231,9 @@
       }
     },
     "nodemailer": {
-      "version": "6.4.2",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.2.tgz",
-      "integrity": "sha512-g0n4nH1ONGvqYo1v72uSWvF/MRNnnq1LzmSzXb/6EPF3LFb51akOhgG3K2+aETAsJx90/Q5eFNTntu4vBCwyQQ=="
+      "version": "6.4.16",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.16.tgz",
+      "integrity": "sha512-68K0LgZ6hmZ7PVmwL78gzNdjpj5viqBdFqKrTtr9bZbJYj6BRj5W6WGkxXrEnUl3Co3CBXi3CZBUlpV/foGnOQ=="
     },
     "prism-media": {
       "version": "0.0.3",

package.json

@@ -5,6 +5,6 @@
     "mail": "^0.2.3",
     "mailparser": "^2.7.1",
     "node-mbox": "^1.0.0",
-    "nodemailer": "^6.4.2"
+    "nodemailer": "^6.4.16"
   }
 }