build(helm): update kube-prometheus-stack to 87.14.0

Author: renovate-bot

apps/versions.toml

@@ -61,7 +61,7 @@ version = "1.15.1"
 helm = "https://opensource.zalando.com/postgres-operator/charts/postgres-operator"
 
 [prometheus]
-version = "86.0.0"
+version = "87.14.0"
 helm = "https://prometheus-community.github.io/helm-charts"
 chart = "kube-prometheus-stack"