feat: upgrade mongoose from 6.12.0 to 8.1.0

Snyk has created this PR to upgrade mongoose from 6.12.0 to 8.1.0.

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

See this project in Snyk:
https://app.snyk.io/org/nodeshift-agg/project/0865fbfa-c5be-44cc-ab70-e2f03f8f4eb1?utm_source=github&utm_medium=referral&page=upgrade-pr