appmanager: use v2 apiVersion for HelmRelease

Change-Id: I39fb9eba35a95c350a28b08068d0c1670df2ed5e
diff --git a/core/installer/status/helm.go b/core/installer/status/helm.go
index dc5b3ba..ee4a959 100644
--- a/core/installer/status/helm.go
+++ b/core/installer/status/helm.go
@@ -32,7 +32,7 @@
 	res, err := m.d.Resource(
 		schema.GroupVersionResource{
 			Group:    "helm.toolkit.fluxcd.io",
-			Version:  "v2beta1",
+			Version:  "v2",
 			Resource: "helmreleases",
 		},
 	).Namespace(ref.Namespace).Get(ctx, ref.Name, metav1.GetOptions{})