Bump protobuf in /deploy/hps/sdk/pipelines/PP-ChatOCRv3-doc/client

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 3.19.6 to 5.29.6.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 5.29.6
  dependency-type: direct:production
...

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Author: dependabot[bot]

deploy/hps/sdk/pipelines/PP-ChatOCRv3-doc/client/requirements.txt

@@ -1,3 +1,3 @@
 # paddlex-hps-client
-protobuf == 3.19.6
+protobuf == 5.29.6
 tritonclient [grpc] == 2.15