build(deps): bump protobuf in /services/uds_tokenizer

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 6.31.1 to 6.33.5.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 6.33.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

services/uds_tokenizer/requirements.txt

@@ -6,7 +6,7 @@ Jinja2==3.1.6
 modelscope
 huggingface-hub
 aiohttp==3.9.5
-protobuf==6.31.1
+protobuf==6.33.5
 tiktoken>=0.7.0
 grpcio==1.76.0
 grpcio-tools==1.76.0