[target-allocator] `ServiceMonitor` must rely on an empty job

[CoderPoet]

At present, when we use servicemonitor, we must set an empty job as a placeholder for config replace eg:

    receivers:
      prometheus:
        config:
          scrape_configs:
          - job_name: serviceMonitor/vke-system/harbor-server/0

servicemonitor is dynamically created, so there is no way to preset an empty job. Can we consider generating these scrape job configurations automatically?

[CoderPoet]

Is it possible to automatically generate this type of job without manual pre-creation

[jaronoff97]

I believe this will be resolved by this PR which allows for dynamic jobs to be found by the prometheus receiver

[secustor]

Solved in Release v0.61.0