Update Grafana from v6.4.3 to v6.4.4

* https://github.com/grafana/grafana/releases/tag/v6.4.4

CHANGES.md

@@ -15,7 +15,7 @@ Notable changes between versions.
 * Update Prometheus from v2.13.0 to v2.13.1
   * Refresh rules, alerts, and dashboards from upstreams
 * Remove addon-resizer from kube-state-metrics ([#575](https://github.com/poseidon/typhoon/pull/575))
-* Update Grafana from v6.4.2 to v6.4.3
+* Update Grafana from v6.4.2 to v6.4.4
 
 ## v1.16.2
 

addons/grafana/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
         - name: grafana
-          image: docker.io/grafana/grafana:6.4.3
+          image: docker.io/grafana/grafana:6.4.4
           env:
             - name: GF_PATHS_CONFIG
               value: "/etc/grafana/custom.ini"