Bump sequelize from 6.12.4 to 6.12.5 (#423)

Bumps [sequelize](https://github.com/sequelize/sequelize) from 6.12.4 to 6.12.5.
- [Release notes](https://github.com/sequelize/sequelize/releases)
- [Commits](sequelize/sequelize@v6.12.4...v6.12.5)

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

Signed-off-by: dependabot[bot] <support@github.com>

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