[bot] [main] Automated version update (#2317)

Co-authored-by: Prometheus Operator Bot <prom-op-bot@users.noreply.github.com>

manifests/grafana-service.yaml

@@ -5,7 +5,7 @@ metadata:
     app.kubernetes.io/component: grafana
     app.kubernetes.io/name: grafana
     app.kubernetes.io/part-of: kube-prometheus
-    app.kubernetes.io/version: 10.2.2
+    app.kubernetes.io/version: 10.2.3
   name: grafana
   namespace: monitoring
 spec: