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/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.20.1...v3.20.2)

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

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

Author: dependabot[bot]

requirements.txt

@@ -12,7 +12,7 @@ matplotlib==3.4.1
 multi-model-server==1.1.2
 numpy==1.19.2
 pandas==1.2.4
-protobuf==3.20.1
+protobuf==3.20.2
 psutil==5.6.7  # sagemaker-containers requires psutil 5.6.7
 pynvml==11.4.1
 python-dateutil==2.8.1