chore(argo-cd): Document how to upgrade CRDs (#1251)

* chore(argo-cd): Document how to upgrade CRDs

Signed-off-by: Petr Drastil <petr.drastil@gmail.com>

* feat(argo-cd): Update chart version and changelog

Signed-off-by: Petr Drastil <petr.drastil@gmail.com>

charts/argo-cd/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: v2.3.3
 description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 4.5.7
+version: 4.5.8
 home: https://github.com/argoproj/argo-helm
 icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
 keywords:
@@ -21,4 +21,4 @@ dependencies:
     condition: redis-ha.enabled
 annotations:
   artifacthub.io/changes: |
-    - "[Removed]: Drop unneeded static-files volume from argocd-server"
+    - "[Added]: Document how to upgrade CRDs"