Bump protobuf from 4.25.8 to 5.29.6 (#273)

* Bump protobuf from 4.25.8 to 5.29.6

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 4.25.8 to 5.29.6.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 5.29.6
  dependency-type: direct:production
...

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* poetry add locally

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Kaisa Kuivalahti <kaisa.kuivalahti@helsinki.fi>

Author: dependabot[bot]