Bump protobuf from 3.20.1 to 3.20.2

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 3.20.1 to 3.20.2.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v3.20.1...v3.20.2)

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

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

viewpoint_classifier/requirements.txt

@@ -71,7 +71,7 @@ platformdirs @ file:///home/conda/feedstock_root/build_artifacts/platformdirs_17
 pluggy @ file:///home/conda/feedstock_root/build_artifacts/pluggy_1706116770704/work
 prettytable==3.12.0
 prompt_toolkit==3.0.48
-protobuf==3.20.1
+protobuf==3.20.2
 psutil==6.1.0
 ptyprocess==0.7.0
 pure_eval==0.2.3