Merge pull request #1862 from processing/dependabot/npm_and_yarn/nodemailer-6.4.16

Bump nodemailer from 2.7.2 to 6.4.16

Author: catarak

package-lock.json

@@ -188,7 +188,7 @@
     "mockingoose": "^2.13.2",
     "mongoose": "^5.12.3",
     "node-uuid": "^1.4.7",
-    "nodemailer": "^2.6.4",
+    "nodemailer": "^6.4.16",
     "nodemailer-mailgun-transport": "^1.4.0",
     "passport": "^0.3.2",
     "passport-github": "^1.1.0",