chore(deps): cleanup go.mod a little bit (#136)

* Upgrade docker to v19.03.7

* go mod vendor

* golangci-lint 1.23.8

vendor/github.com/docker/docker/client/node_remove.go

@@ -15,6 +15,6 @@ func (cli *Client) NodeRemove(ctx context.Context, nodeID string, options types.
 	}
 
 	resp, err := cli.delete(ctx, "/nodes/"+nodeID, query, nil)
-	ensureReaderClosed(resp)
+	defer ensureReaderClosed(resp)
 	return wrapResponseError(err, resp, "node", nodeID)
 }