fix grafana clickhouse datasource

grafana/values.yaml

@@ -545,9 +545,13 @@ grafana: &grafana_config
           access: proxy
           isDefault: false
           jsonData:
-            server: "clickhouse.tools.svc.cluster.local"
+            host: "clickhouse.tools.svc.cluster.local"
+            port: 9000
+            tlsSkipVerify: true
             defaultDatabase: "default"
-          secureJsonData: {}
+          secureJsonData:
+            username: arcodange
+            password: clickhousearcodange
   #    - name: Prometheus
   #      type: prometheus
   #      url: http://prometheus-prometheus-server