Bump sequelize from 6.31.1 to 6.33.0 in /app

Bumps [sequelize](https://github.com/sequelize/sequelize) from 6.31.1 to 6.33.0.
- [Release notes](https://github.com/sequelize/sequelize/releases)
- [Commits](sequelize/sequelize@v6.31.1...v6.33.0)

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

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

app/package.json

@@ -26,7 +26,7 @@
     "luxon": "^3.3.0",
     "node-schedule": "^2.0.0",
     "pg": "^8.7.1",
-    "sequelize": "^6.6.5",
+    "sequelize": "^6.33.0",
     "sequelize-cli": "^6.6.1"
   },
   "devDependencies": {