refactor: rename universal to appsets

appsets/system-upgrade-controller.yaml

@@ -0,0 +1,30 @@
+apiVersion: argoproj.io/v1alpha1
+kind: ApplicationSet
+metadata:
+  name: universal-system-upgrade-controller
+spec:
+  generators:
+    - list:
+        elements:
+          - cluster: cherry
+            url: https://kubernetes.default.svc
+  syncPolicy:
+    applicationsSync: sync
+  template:
+    metadata:
+      name: "{{cluster}}-system-upgrade-controller"
+    spec:
+      project: infrastructure
+      syncPolicy:
+        automated:
+          prune: true
+          selfHeal: true
+        syncOptions:
+          - CreateNamespace=true
+      source:
+        repoURL: https://github.com/rancher/system-upgrade-controller.git
+        targetRevision: v0.13.1
+        path: manifests/
+      destination:
+        server: "{{url}}"
+        namespace: system-upgrade