build(deps-dev): bump sequelize from 6.20.1 to 6.21.2 (#1336)

Bumps [sequelize](https://github.com/sequelize/sequelize) from 6.20.1 to 6.21.2.
- [Release notes](https://github.com/sequelize/sequelize/releases)
- [Commits](sequelize/sequelize@v6.20.1...v6.21.2)

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

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

Author: dependabot[bot]

package-lock.json

@@ -131,7 +131,7 @@
     "prettyjson": "1.2.5",
     "reflect-metadata": "0.1.13",
     "release-it": "14.14.3",
-    "sequelize": "6.20.1",
+    "sequelize": "6.21.2",
     "sinon": "13.0.1",
     "sinon-chai": "3.7.0",
     "source-map-support": "0.5.21",