[Task]: Yaml - fix kafka and pubsub post commit tests and code

### What needs to happen?

- [x] https://github.com/apache/beam/issues/35198
- [x] ReadFromKafka - in the kafka yaml tests needs to be uncommented and figure out why it fails in github actions while locally it runs fine - https://github.com/apache/beam/pull/36603
- [ ] ReadFromPubSub - no timer to pause reading, so need to implement that and uncomment the test code to run and pass

### Issue Priority

Priority: 2 (default / most normal work should be filed as P2)

### Issue Components

- [ ] Component: Python SDK
- [ ] Component: Java SDK
- [ ] Component: Go SDK
- [ ] Component: Typescript SDK
- [ ] Component: IO connector
- [x] Component: Beam YAML
- [ ] Component: Beam examples
- [ ] Component: Beam playground
- [ ] Component: Beam katas
- [ ] Component: Website
- [ ] Component: Infrastructure
- [ ] Component: Spark Runner
- [ ] Component: Flink Runner
- [ ] Component: Samza Runner
- [ ] Component: Twister2 Runner
- [ ] Component: Hazelcast Jet Runner
- [ ] Component: Google Cloud Dataflow Runner