Add overrides for ocp 4.20 with downstream-eso

Note that we cannot use the sharedValueFiles field.
This does not work on the clusterwise ardocd instance on the spokes.

This is because the helm template resolution happens on the hub and
so it won't reflect the values on the spokes.

Author: mbaldessari

charts/all/config-demo/templates/config-demo-external-secret.yaml

@@ -1,5 +1,5 @@
 ---
-apiVersion: "external-secrets.io/v1beta1"
+apiVersion: {{ .Values.esoversion }}
 kind: ExternalSecret
 metadata:
   name: config-demo-secret

charts/all/config-demo/values.yaml

@@ -3,6 +3,7 @@ secretStore:
   name: vault-backend
   kind: ClusterSecretStore
 
+esoversion: "external-secrets.io/v1beta1"
 configdemosecret:
   key: secret/data/global/config-demo
 

values-4.20-group-one.yaml

@@ -0,0 +1,23 @@
+esoversion: "external-secrets.io/v1"
+
+clusterGroup:
+  namespaces:
+    golang-external-secrets: null
+    external-secrets-operator:
+      operatorGroup: true
+      targetNamespaces: []
+    external-secrets:
+  subscriptions:
+    eso:
+      name: openshift-external-secrets-operator
+      namespace: external-secrets-operator
+      channel: stable-v1
+  applications:
+    golang-external-secrets: null
+    openshift-external-secrets:
+      name: openshift-external-secrets
+      namespace: external-secrets
+      argoProject: eso
+      chart: openshift-external-secrets
+      chartVersion: 0.0.*
+

values-4.20-hub.yaml

@@ -0,0 +1,22 @@
+esoversion: "external-secrets.io/v1"
+
+clusterGroup:
+  namespaces:
+    golang-external-secrets: null
+    external-secrets-operator:
+      operatorGroup: true
+      targetNamespaces: []
+    external-secrets:
+  subscriptions:
+    eso:
+      name: openshift-external-secrets-operator
+      namespace: external-secrets-operator
+      channel: stable-v1
+  applications:
+    golang-external-secrets: null
+    openshift-external-secrets:
+      name: openshift-external-secrets
+      namespace: external-secrets
+      argoProject: hub
+      chart: openshift-external-secrets
+      chartVersion: 0.0.*