Update Helm release kube-prometheus-stack to v66.2.2 (#1234)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

kustomize/bases/kube-prometheus-stack/kustomization.yaml

@@ -5,7 +5,7 @@ namespace: monitoring
 helmCharts:
   - name: kube-prometheus-stack
     repo: https://prometheus-community.github.io/helm-charts
-    version: 66.2.1
+    version: 66.2.2
     releaseName: prometheus-stack
     namespace: monitoring
     valuesFile: helm-values.yaml