fix test

Author: mydea

packages/core/test/lib/tracing/span.test.ts

@@ -1,5 +1,5 @@
 import { Span } from '../../../src';
-import { TraceFlagNone, TraceFlagSampled } from '../../../src/tracing/span';
+import { TraceFlagNone, TraceFlagSampled } from '../../../src/utils/spanUtils';
 
 describe('span', () => {
   it('works with name', () => {