build(deps-dev): bump mypy-protobuf from 3.7.0 to 4.0.0

Bumps [mypy-protobuf](https://github.com/nipunn1313/mypy-protobuf) from 3.7.0 to 4.0.0.
- [Changelog](https://github.com/nipunn1313/mypy-protobuf/blob/main/CHANGELOG.md)
- [Commits](nipunn1313/mypy-protobuf@v3.7.0...v4.0.0)

---
updated-dependencies:
- dependency-name: mypy-protobuf
  dependency-version: 4.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Author: dependabot[bot]