chore(deps): update helm release argo-cd to v9.5.21

Author: renovate[bot]

apps/argocd/helmfile.yaml.gotmpl

@@ -4,7 +4,7 @@ repositories:
 releases:
   - name: argocd
     chart: argo-helm/argo-cd
-    version: v9.5.13
+    version: 9.5.21
     namespace: argocd
     values:
       - values.yaml.gotmpl