chartがアップデートされたのでアップグレード。
https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack
https://artifacthub.io/packages/helm/grafana/loki-stack
helm ls -n monitoring
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
falco monitoring 4 2022-02-08 20:50:03.250439 +0900 JST deployed falco-1.17.1 0.31.0
kube-prom-stack monitoring 3 2022-02-10 08:44:59.83723 +0900 JST deployed kube-prometheus-stack-32.2.0 0.54.0
loki monitoring 2 2022-02-10 19:57:51.088543 +0900 JST deployed loki-stack-2.6.1 v2.1.0