feat(argo-cd): Introduce chart signing (#2042)

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

charts/argo-cd/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v2.7.1
 kubeVersion: ">=1.22.0-0"
 description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 5.32.1
+version: 5.32.2
 home: https://github.com/argoproj/argo-helm
 icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
 sources:
@@ -22,6 +22,9 @@ dependencies:
     repository: https://dandydeveloper.github.io/charts/
     condition: redis-ha.enabled
 annotations:
+  artifacthub.io/signKey: |
+    fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
+    url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
     - kind: added
-      description: Enable to customize Service type of applicationset-controller
+      description: Introduce chart signing