fix(argo-cd): Update to app version v2.1.5 (#990)

* fix(argo-cd): Update to app version v2.1.5

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

* chore: Use chart appVersion as global default imageTag

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

charts/argo-cd/Chart.yaml

@@ -1,8 +1,8 @@
 apiVersion: v2
-appVersion: 2.1.4
+appVersion: v2.1.5
 description: A Helm chart for ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 3.26.2
+version: 3.26.3
 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: |
-    - "[Changed]: Use helm-docs to generate README.md"
+    - "[Changed]: Update to app version 2.1.5"