build(deps): Update protobuf requirement

Updates the requirements on [protobuf](https://github.com/protocolbuffers/protobuf) to permit the latest version.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v5.28.0...v6.30.2)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 6.30.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -36,7 +36,7 @@ dependencies = [
 "tqdm>=4.66.2,<5.0",
 "trl>=0.13,<0.17",
 "peft>=0.8.0,<0.14",
-"protobuf>=5.28.0,<6.0.0",
+"protobuf>=5.28.0,<7.0.0",
 "datasets>=2.15.0,<4.0",
 "simpleeval>=0.9.13,<2.0",
 "pillow>=11.0.0,<12.0",