feat(service_monitor): don't deploy if not enabled

!8

templates/ServiceMonitor-kube-scheduler.yaml

@@ -1,3 +1,4 @@
+{{ if .Values.nfc_monitoring.prometheus.service_monitor.kube_scheduler }}
 ---
 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
@@ -34,3 +35,5 @@ spec:
       app.kubernetes.io/instance: k8s
       app.kubernetes.io/name: kube-monitor-proxy
       app.kubernetes.io/part-of: {{ $.Chart.Name }}
+
+{{ end }}