chore(deps): bump the dependencies group with 1 update (#14)

Bumps the dependencies group with 1 update: [protobuf](https://github.com/protocolbuffers/protobuf).

- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.18.3...v3.20.3)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

requirements.txt

@@ -1,7 +1,7 @@
 certifi==2023.11.17
 charset-normalizer==3.3.2
 idna==3.4
-protobuf==3.18.3
+protobuf==3.20.3
 PyYAML==6.0.1
 requests==2.31.0
 six==1.16.0