fix: upgrade serializr from 3.0.2 to 3.0.3

Snyk has created this PR to upgrade serializr from 3.0.2 to 3.0.3.

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

@@ -29,7 +29,7 @@
     "helmet": "^7.2.0",
     "pg": "^8.13.0",
     "sequelize": "^6.37.4",
-    "serializr": "^3.0.2",
+    "serializr": "^3.0.3",
     "winston": "^3.15.0"
   },
   "devDependencies": {