build(deps): bump validator and sequelize in /examples/repository-mode (#1463)

Bumps [validator](https://github.com/validatorjs/validator.js) to 13.7.0 and updates ancestor dependency [sequelize](https://github.com/sequelize/sequelize). These dependencies need to be updated together.


Updates `validator` from 10.11.0 to 13.7.0
- [Release notes](https://github.com/validatorjs/validator.js/releases)
- [Changelog](https://github.com/validatorjs/validator.js/blob/master/CHANGELOG.md)
- [Commits](validatorjs/validator.js@10.11.0...13.7.0)

Updates `sequelize` from 5.15.1 to 5.22.5
- [Release notes](https://github.com/sequelize/sequelize/releases)
- [Commits](sequelize/sequelize@v5.15.1...v5.22.5)

---
updated-dependencies:
- dependency-name: validator
  dependency-type: indirect
- dependency-name: sequelize
  dependency-type: direct:production
...

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

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

Author: dependabot[bot]

examples/repository-mode/package-lock.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "body-parser": "^1.18.3",
     "express": "^4.16.4",
-    "sequelize": "^5.15.1",
+    "sequelize": "^5.22.5",
     "sequelize-typescript": "^1.0.0-alpha.9",
     "strong-error-handler": "^3.2.0"
   }