fix(deps): update dependency nodemailer to v6.4.2

Author: renovate-bot

package-lock.json

@@ -33,7 +33,7 @@
     "mailparser": "2.7.7",
     "make-error": "1.3.5",
     "moment": "2.24.0",
-    "nodemailer": "6.4.1",
+    "nodemailer": "6.4.2",
     "nodemailer-mailgun-transport": "1.4.0",
     "promptly": "3.0.3",
     "ramda": "0.26.1",