chore: bump protobuf from 4.25.5 to 5.28.3

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 4.25.5 to 5.28.3.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v4.25.5...v5.28.3)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -54,7 +54,7 @@ grpcio = "^1.60.1"
 ipython = "^8.21.0"
 jsonschema = "^4.21.1"
 keyring = "*"
-protobuf = "^4.25.3"
+protobuf = ">=4.25.3,<6.0.0"
 psycopg = {extras = ["binary"], version = "^3.2.2"}
 pydantic = "^2.6.1"
 pyjwt = "2.9.0"