Prometheus scanner fails when deserializing CR
When deserializing a prometheus CR the operator fails with a:
Caused by: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "apiVersion" (class io.stackgres.operator.customresource.prometheus.AlertManager), not marked as ignorable (4 known properties: "port", "name", "pathPrefix", "namespace"])
at [Source: (BufferedInputStream); line: 1, column: 663] (through reference chain: io.stackgres.operator.customresource.prometheus.PrometheusConfigList["items"]->java.util.ArrayList[0]->io.stackgres.operator.customresource.prometheus.PrometheusConfig["spec"]->io.stackgres.operator.customresource.prometheus.PrometheusConfigSpec["alerting"]->io.stackgres.operator.customresource.prometheus.Alerting["alertmanagers"]->java.util.ArrayList[0]->io.stackgres.operator.customresource.prometheus.AlertManager["apiVersion"])
This actually breaks the reconciliation cycle.