Use existing tools to parse APIVersion

Signed-off-by: Scott Andrews <[email protected]>

tracker/enqueue.go

@@ -98,14 +98,10 @@ func (i *impl) TrackObject(ref client.Object, obj client.Object) error {
 		return err
 	}
 
-	apiGroup := ""
-	if l := strings.Index(or.APIVersion, "/"); l >= 0 { // is not a core resource
-		apiGroup = or.APIVersion[:l]
-	}
-
+	gvk := schema.FromAPIVersionAndKind(or.APIVersion, or.Kind)
 	return i.TrackReference(Reference{
-		APIGroup:  apiGroup,
-		Kind:      or.Kind,
+		APIGroup:  gvk.Group,
+		Kind:      gvk.Kind,
 		Namespace: or.Namespace,
 		Name:      or.Name,
 	}, obj)