like that?

apps/monitoring/grafana.values.yaml

@@ -34,8 +34,8 @@ datasources:
         url: http://thanos-querier.prometheus.svc:9090
         isDefault: true
 
-dashboardProviders:
-  dashboardproviders.yaml:
+# dashboardProviders:
+#   dashboardproviders.yaml:
     
 ## Reference to external ConfigMap per provider. Use provider name as key and ConfigMap name as value.
 ## A provider dashboards must be defined either by external ConfigMaps or in values.yaml, not in both.