Bump nodemailer from 6.4.17 to 6.6.1 (#351)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -43,7 +43,7 @@
         "lodash": "^4.17.21",
         "lusca": "1.6.1",
         "mongoose": "5.11.15",
-        "nodemailer": "6.4.17",
+        "nodemailer": "6.6.1",
         "passport": "0.4.1",
         "passport-facebook": "3.0.0",
         "passport-local": "1.0.0",