Bump protobuf from 4.22.3 to 4.22.4 in /test

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 4.22.3 to 4.22.4.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v4.22.3...v4.22.4)

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

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

test/requirements.ci.txt

@@ -3,4 +3,4 @@ requests==2.29.0
 websocket-client==1.5.1
 urllib3==1.26.15
 grpcio==1.54.0
-protobuf==4.22.3
+protobuf==4.22.4