[grafana] Update to version 10.4.1 (#3039)

Signed-off-by: Tero Paloheimo <tero.paloheimo@iki.fi>
Co-authored-by: MH <zanhsieh@gmail.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>

charts/grafana/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: grafana
-version: 7.3.7
-appVersion: 10.4.0
+version: 7.3.8
+appVersion: 10.4.1
 kubeVersion: "^1.8.0-0"
 description: The leading tool for querying and visualizing time series and metrics.
 home: https://grafana.com