Fix cluster label in alerts (#220)

Signed-off-by: Viktor Cech <viktor.cech@dnation.cloud>
Co-authored-by: Viktor Cech <viktor.cech@dnation.cloud>

Author: viktor-cech

chart/Chart.yaml

@@ -15,8 +15,8 @@
 
 apiVersion: v2
 name: dnation-kubernetes-monitoring
-version: 2.7.10
-appVersion: 2.7.9
+version: 2.7.11
+appVersion: 2.7.10
 description: A set of Grafana dashboards and Prometheus alerts to cover Kubernetes monitoring in an easy way using a drill-down principle.
 keywords:
 - dnation