chore(deps): update helm release kube-prometheus-stack to v56.21.4

apps/gitea/kustomization.yaml

@@ -22,7 +22,7 @@ helmCharts:
   valuesFile: gitea-values.yaml
 - name: renovate
   releaseName: renovate
-  version: 37.229.0
+  version: 37.231.2
   repo: https://docs.renovatebot.com/helm-charts
   namespace: gitea
   valuesFile: renovate-bot-values.yaml

infra/monitoring/kustomization.yaml

@@ -13,7 +13,7 @@ resources:
 helmCharts:
 - name: kube-prometheus-stack
   releaseName: kube-prometheus-stack
-  version: 56.20.0
+  version: 56.21.4
   repo: https://prometheus-community.github.io/helm-charts
   namespace: monitoring
   valuesFile: values.yaml