Bump sequelize from 6.37.7 to 6.37.8 in /server

Bumps [sequelize](https://github.com/sequelize/sequelize) from 6.37.7 to 6.37.8.
- [Release notes](https://github.com/sequelize/sequelize/releases)
- [Changelog](https://github.com/sequelize/sequelize/blob/main/CHANGELOG.md)
- [Commits](sequelize/sequelize@v6.37.7...v6.37.8)

---
updated-dependencies:
- dependency-name: sequelize
  dependency-version: 6.37.8
  dependency-type: direct:production
...

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Author: dependabot[bot]