fix: upgrade nodemon from 2.0.15 to 2.0.22

Snyk has created this PR to upgrade nodemon from 2.0.15 to 2.0.22.

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

See this project in Snyk:
https://app.snyk.io/org/loonz206/project/e170a75b-6111-4781-ada4-5defdee12061?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -34,7 +34,7 @@
     "html-webpack-plugin": "^5.5.3",
     "lodash": "^4.17.21",
     "mongoose": "^5.13.20",
-    "nodemon": "^3.0.0",
+    "nodemon": "^2.0.22",
     "passport": "^0.6.0",
     "passport-local": "^1.0.0",
     "react": "^16.14.0",