How to release node:zlib resources

import { createDeflate } from 'node:zlib';
Deno.test('deflate teardown', async () => {
  const deflate = createDeflate();
  deflate.close();
  await new Promise(ok => setTimeout(ok, 1000));
});

error: Leaking resources:
  - A "zlib" resource (rid 3) was created during the test, but not cleaned up during the test. Close the resource before the end of the test.