Bump django-ninja from 1.1.0 to 1.2.0

Bumps [django-ninja](https://github.com/vitalik/django-ninja) from 1.1.0 to 1.2.0.
- [Release notes](https://github.com/vitalik/django-ninja/releases)
- [Commits](vitalik/django-ninja@v1.1.0...v1.2.0)

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

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Author: dependabot[bot]