fix: upgrade nodemon from 2.0.3 to 2.0.4

Snyk has created this PR to upgrade nodemon from 2.0.3 to 2.0.4.

See this package in NPM:
https://www.npmjs.com/package/nodemon

See this project in Snyk:
https://app.snyk.io/org/revjtanton/project/09a1968e-7b01-4032-9063-82f2e99f843e?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -53,7 +53,7 @@
     "mocha": "7.1.2",
     "morgan": "1.10.0",
     "nodemailer": "^6.4.6",
-    "nodemon": "2.0.3",
+    "nodemon": "2.0.4",
     "nunjucks": "^3.2.1",
     "pg": "7.18.2",
     "random-words": "1.1.1",