fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - dotenv from 16.4.1 to 16.4.5.
    See this package in npm: https://www.npmjs.com/package/dotenv
  - express from 4.18.2 to 4.19.2.
    See this package in npm: https://www.npmjs.com/package/express
  - pg from 8.11.3 to 8.12.0.
    See this package in npm: https://www.npmjs.com/package/pg
  - validator from 13.11.0 to 13.12.0.
    See this package in npm: https://www.npmjs.com/package/validator
  - sequelize from 6.35.2 to 6.37.3.
    See this package in npm: https://www.npmjs.com/package/sequelize

See this project in Snyk:
https://app.snyk.io/org/kaifkh20/project/edf07c18-b7fe-4d53-9225-9c433d7ca740?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -16,13 +16,13 @@
     "bcrypt": "^5.1.1",
     "body-parser": "^1.20.2",
     "cookie-parser": "^1.4.6",
-    "dotenv": "^16.4.1",
-    "express": "^4.18.2",
+    "dotenv": "^16.4.5",
+    "express": "^4.19.2",
     "jsonwebtoken": "^9.0.2",
-    "pg": "^8.11.3",
-    "sequelize": "^6.35.2",
+    "pg": "^8.12.0",
+    "sequelize": "^6.37.3",
     "slug": "^8.2.3",
-    "validator": "^13.11.0"
+    "validator": "^13.12.0"
   },
   "devDependencies": {
     "nodemon": "^3.0.1"