Bump frozendict from 2.3.8 to 2.4.0 (#290)

Bumps [frozendict](https://github.com/Marco-Sulla/python-frozendict) from 2.3.8 to 2.4.0.
- [Release notes](https://github.com/Marco-Sulla/python-frozendict/releases)
- [Commits](Marco-Sulla/python-frozendict@v2.3.8...v2.4.0)

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

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