Bump protobuf from 5.28.2 to 5.29.3

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 5.28.2 to 5.29.3.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v5.28.2...v5.29.3)

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

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

requirements.txt

@@ -16,7 +16,7 @@ httplib2==0.22.0
 influxdb-client==1.46.0
 msrest==0.7.1
 openqa-client==4.2.3
-protobuf==5.28.2
+protobuf==5.29.3
 python-dateutil==2.9.0.post0
 requests==2.32.3
 texttable==1.7.0