Update dependency argoproj/argo-cd to v2.8.5 (#986)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

e2e_test/argocd/kustomization.yaml

@@ -1,7 +1,7 @@
 namespace: argocd
 resources:
   # https://github.com/argoproj/argo-cd
-  - https://raw.githubusercontent.com/argoproj/argo-cd/v2.8.4/manifests/install.yaml
+  - https://raw.githubusercontent.com/argoproj/argo-cd/v2.8.5/manifests/install.yaml
   - namespace/argocd.yaml
 patchesStrategicMerge:
   - configmap/argocd-cm.yaml