Bump sequelize from 6.23.2 to 6.25.3 (#520)

Bumps [sequelize](https://github.com/sequelize/sequelize) from 6.23.2 to 6.25.3.
- [Release notes](https://github.com/sequelize/sequelize/releases)
- [Commits](sequelize/sequelize@v6.23.2...v6.25.3)

---
updated-dependencies:
- dependency-name: sequelize
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>