fix compile

Author: leavez

client/transport/streamable_http.go

@@ -163,7 +163,7 @@ func (c *StreamableHTTP) Close() error {
 		go func() {
 			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 			defer cancel()
-			req, err := http.NewRequestWithContext(ctx, http.MethodDelete, c.serverURL.String(), nil)
+			req, err := http.NewRequestWithContext(ctx, http.MethodDelete, c.baseURL.String(), nil)
 			if err != nil {
 				fmt.Printf("failed to create close request\n: %v", err)
 				return