Add the PrometheusRemoteWrite output plugin

[benjaminhuo]

Is your feature request related to a problem? Please describe.

Fluent operator already supports node exporter metrics input plugin and opentelemetry output plugin in https://github.com/fluent/fluent-operator/pull/345

The popular Prometheus remote write plugin should also be supported which enables users to send node exporter metrics to remote Prometheus long-term storages such as Thanos, Cortex, Mimir, or cloud services like grafana cloud

https://docs.fluentbit.io/manual/pipeline/outputs/prometheus-remote-write

Describe the solution you'd like

And plugin called PrometheusRemoteWrite for fluentbit ClusterOutput

Additional context

No response