logger not surfacing the error when failed to send cloud event

[yuzisun]

/kind bug

What steps did you take and what happened:
There is a regression for this PR that it nuked the error from sending cloud event
https://github.com/kserve/kserve/blob/master/pkg/logger/worker.go#L104

What did you expect to happen:

What's the InferenceService yaml:
[To help us debug please run kubectl get isvc $name -n $namespace -oyaml and paste the output]

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Istio Version:
• Knative Version:
• KServe Version:
• Kubeflow version:
• Cloud Environment:[k8s_istio/istio_dex/gcp_basic_auth/gcp_iap/aws/aws_cognito/ibm]
• Minikube/Kind version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):