Update ujson requirement from <=5.1.0,>=4.0 to >=4.0,<5.3.0 (#252)

Update ujson requirement from <=5.1.0,>=4.0 to >=4.0,<5.3.0 (#252)

Updates the requirements on [ujson](https://github.com/ultrajson/ultrajson) to permit the latest version.
- [Release notes](https://github.com/ultrajson/ultrajson/releases)
- [Commits](https://github.com/ultrajson/ultrajson/compare/4.0.0...5.2.0)

---
updated-dependencies:
- dependency-name: ujson
  dependency-type: direct:production
...

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