Update protobuf requirement from <3.21.0,>=3.20.0 to >=3.20.0,<4.23.0 (…

…#189)

Updates the requirements on [protobuf](https://github.com/protocolbuffers/protobuf) to permit the latest version.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.20.0...v4.22.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -7,7 +7,7 @@ pytorch-lightning >=1.8.0, <1.9.0
 omegaconf >=2.0.1
 torchmetrics >=0.10.0, <0.12.0
 tensorboard >=2.2.0, !=2.5.0
-protobuf >=3.20.0, <3.21.0
+protobuf >=3.20.0, <4.23.0
 pytorch-tabnet ==4.0
 PyYAML >=5.1, <6.1.0
 # importlib-metadata <1,>=0.12