fix(helm): update chart k8s-monitoring to 3.2.4

Author: renovate[bot]

kubernetes/base/monitoring-system/k8s-monitoring.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: k8s-monitoring
-      version: 3.2.0
+      version: 3.2.4
       sourceRef:
         kind: HelmRepository
         name: grafana