chore(deps): bump protobuf in the pip group across 1 directory

Bumps the pip group with 1 update in the / directory: [protobuf](https://github.com/protocolbuffers/protobuf).


Updates `protobuf` from 4.25.2 to 4.25.8
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v4.25.2...v4.25.8)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 4.25.8
  dependency-type: indirect
  dependency-group: pip
...

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Author: dependabot[bot]