Merge pull request #761 from rackerlabs/renovate/argo-cd-7.x

chore(deps): update helm release argo-cd to v7.8.8

Author: cardoe

bootstrap/argocd/kustomization.yaml

@@ -14,5 +14,5 @@ helmCharts:
   namespace: argocd
   valuesFile: values.yaml
   releaseName: argo-cd
-  version: 7.8.7
+  version: 7.8.8
   repo: https://argoproj.github.io/argo-helm