[grafana] bump chart minor version

Signed-off-by: Mario Steinhoff <mario.steinhoff@grandcentrix.net>

charts/grafana/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: grafana
-version: 7.2.4
+version: 7.2.5
 appVersion: 10.2.3
 kubeVersion: "^1.8.0-0"
 description: The leading tool for querying and visualizing time series and metrics.