update storageos vendor for FilteredDial change

vendor/github.com/storageos/go-api/health.go

@@ -14,6 +14,22 @@ var (
 	HealthAPIPrefix = "health"
 )
 
+func (c *Client) ClusterHealth(ctx context.Context) ([]*types.ClusterHealthNode, error) {
+	status := []*types.ClusterHealthNode{}
+	url := fmt.Sprintf("/cluster/%s", HealthAPIPrefix)
+
+	resp, err := c.do("GET", url, doOptions{context: ctx, retryOn: []int{http.StatusNotFound}})
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if err := json.NewDecoder(resp.Body).Decode(&status); err != nil {
+		return nil, err
+	}
+	return status, nil
+}
+
 // CPHealth returns the health of the control plane server at a given url.
 func (c *Client) CPHealth(ctx context.Context, hostname string) (*types.CPHealthStatus, error) {