fix: upgrade serializr from 3.0.3 to 3.0.4

Snyk has created this PR to upgrade serializr from 3.0.3 to 3.0.4.

See this package in npm:
serializr

See this project in Snyk:
https://app.snyk.io/org/20kaushik02/project/b4833e61-9c4d-40ff-afd5-54cf293ce6bc?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -36,7 +36,7 @@
     "sequelize": "^6.37.6",
     "sequelize-cli": "^6.6.2",
     "sequelize-typescript": "^2.1.6",
-    "serializr": "^3.0.3",
+    "serializr": "^3.0.4",
     "winston": "^3.17.0"
   },
   "devDependencies": {