k8s:production upgrade kube-prometheus-stack Chart to 56.6.2 (#1430)

This does not update the GKE prometheus-engine/prometheus
image. I propose doing this as a seperate second step
after the rest of the stack is present in both staging and
production

Bug: T356049

k8s/helmfile/helmfile.yaml

@@ -207,7 +207,7 @@ releases:
 
   - name: kube-prometheus-stack
     namespace: monitoring
-    version: '{{ if eq .Environment.Name "production" }} 45.1.1 {{ else }} 56.6.2 {{ end }}'
+    version: '56.6.2'
     chart: prometheus-community/kube-prometheus-stack
     # https://github.com/roboll/helmfile/issues/1124
     disableValidation: true

k8s/helmfile/prometheus-operator.yaml

@@ -22,5 +22,5 @@ environments:
 releases:
   - name: prometheus-operator-crds
     namespace: monitoring
-    version: '{{ if eq .Environment.Name "production" }} 2.0.0 {{ else }} 9.0.0 {{ end }}'
+    version: '9.0.0'
     chart: prometheus-community/prometheus-operator-crds