fix: upgrade express from 4.17.3 to 4.18.1

Snyk has created this PR to upgrade express from 4.17.3 to 4.18.1.

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

See this project in Snyk:
https://app.snyk.io/org/loft-fzm/project/df424ad8-53af-45cb-9b8e-0971e1968e4d?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot