fix lint

Author: mydea

packages/browser/test/transports/fetch.test.ts

@@ -1,7 +1,7 @@
 import type { EventEnvelope, EventItem } from '@sentry/core';
 import { createEnvelope, serializeEnvelope } from '@sentry/core';
-import { Mock, afterEach } from 'vitest';
-import { describe, expect, it, vi } from 'vitest';
+import type { Mock } from 'vitest';
+import { afterEach, describe, expect, it, vi } from 'vitest';
 import { makeFetchTransport } from '../../src/transports/fetch';
 import type { BrowserTransportOptions } from '../../src/transports/types';