chore(deps): update helm release grafana to v10.3.0 (#115)

Co-authored-by: btkostner-infrastructure[bot] <155673906+btkostner-infrastructure[bot]@users.noreply.github.com>

Author: btkostner-infrastructure[bot]

cluster/core/monitoring/grafana/kustomization.yaml

@@ -12,7 +12,7 @@ helmCharts:
     releaseName: grafana
     repo: https://grafana.github.io/helm-charts
     valuesFile: ./values.yaml
-    version: 10.2.0
+    version: 10.3.0
 
 resources:
   - ./resources/external-secret.yaml