chore(deps): bump protobuf from 3.20 to 3.20.2 in /requirements (#4925)

* chore(deps): bump protobuf from 3.20 to 3.20.2 in /requirements

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 3.20 to 3.20.2.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.20.0...v3.20.2)

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

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* update pyproject.toml

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