fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - cookie-parser from 1.4.5 to 1.4.6.
    See this package in npm: https://www.npmjs.com/package/cookie-parser
  - dotenv from 8.2.0 to 8.6.0.
    See this package in npm: https://www.npmjs.com/package/dotenv
  - express from 4.17.1 to 4.19.2.
    See this package in npm: https://www.npmjs.com/package/express
  - helmet from 4.4.1 to 4.6.0.
    See this package in npm: https://www.npmjs.com/package/helmet

See this project in Snyk:
https://app.snyk.io/org/dsc-umit/project/96bf848a-9d92-4215-a887-31a5d31d3814?utm_source=github&utm_medium=referral&page=upgrade-pr