[core] Raylet health check on dashboard agent hangs if a job is created  

### What happened + What you expected to happen

https://github.com/ray-project/kuberay/issues/2355#issuecomment-2344374832

### Versions / Dependencies

Ray 2.34.0

### Reproduction script

https://github.com/ray-project/kuberay/issues/2355#issuecomment-2344374832

### Issue Severity

High: It blocks me from completing my task.