refactor: remove k8s and use release name for instance

!8

templates/RoleBinding-Config-prometheus.yaml

@@ -4,6 +4,7 @@ kind: RoleBinding
 metadata:
   labels:
     {{ toYaml $.Values.nfc_monitoring.prometheus.labels | nindent 4 }}
+    app.kubernetes.io/instance: {{ $.Release.Name }}
     app.kubernetes.io/part-of: {{ $.Chart.Name }}
     app.kubernetes.io/managed-by: {{ $.Release.Service }}
     app.kubernetes.io/version: {{ $.Chart.Version }}
@@ -12,8 +13,8 @@ metadata:
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: Role
-  name: prometheus-k8s-config
+  name: prometheus-{{ $.Release.Name }}-config
 subjects:
 - kind: ServiceAccount
-  name: prometheus-k8s
+  name: prometheus-{{ $.Release.Name }}
   namespace: {{ .Values.nfc_monitoring.prometheus.namespace }}