fix(argo-cd): correct example PrometheusRule expression for missing app info (#1516)

* Update rule expression for missing Argo apps

Signed-off-by: Evan Lock <elock@barracuda.com>

* bump chart version, update changelog

Signed-off-by: Evan Lock <elock@barracuda.com>

Signed-off-by: Evan Lock <elock@barracuda.com>
Co-authored-by: Evan Lock <elock@barracuda.com>

charts/argo-cd/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: v2.4.14
 description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 5.5.10
+version: 5.5.11
 home: https://github.com/argoproj/argo-helm
 icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
 sources:
@@ -22,4 +22,4 @@ dependencies:
     condition: redis-ha.enabled
 annotations:
   artifacthub.io/changes: |
-    - "[Changed]: Update to app version 2.4.14"
+    - "[Changed]: Updated example PrometheusRule expression for missing apps"

charts/argo-cd/values.yaml

@@ -567,7 +567,7 @@ controller:
       spec: []
       # - alert: ArgoAppMissing
       #   expr: |
-      #     absent(argocd_app_info)
+      #     absent(argocd_app_info) == 1
       #   for: 15m
       #   labels:
       #     severity: critical