docs(learn): correct the example code for Streaming Responses with Undici

[NunoMCP]

Docs

Fixes #8326 by parsing the JSON at the final callback and using the status code from the response on the StreamFactoryData

[vercel]

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Project	Deployment	Preview	Updated (UTC)
nodejs-org	Error		Nov 6, 2025 3:59pm

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.73%. Comparing base (9fbb9f6) to head (ad1a5f1).
⚠️ Report is 4 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8327      +/-   ##
==========================================
+ Coverage   76.72%   76.73%   +0.01%     
==========================================
  Files         118      118              
  Lines        9805     9805              
  Branches      335      335              
==========================================
+ Hits         7523     7524       +1     
+ Misses       2280     2279       -1     
  Partials        2        2              

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[mikeesto]

LGTM, thanks!

[NunoMCP]

Looks like there's a timeout error on one of the E2E tests

  1) [firefox] › tests/e2e/general-behavior.spec.ts:118:5 › Node.js Website › Language › should correctly translate UI elements according to language files 
    Error: page.waitForSelector: Test timeout of 30000ms exceeded.
    Call log:
      - waiting for locator('[aria-labelledby=radix-_R_tpaupivb_]') to be visible


      41 |   await button.click();
      42 |
    > 43 |   await page.waitForSelector(selector);
         |              ^
      44 |   return page.locator(selector);
      45 | };
      46 |
        at openLanguageMenu (/home/runner/work/nodejs.org/nodejs.org/apps/site/tests/e2e/general-behavior.spec.ts:43:14)
        at /home/runner/work/nodejs.org/nodejs.org/apps/site/tests/e2e/general-behavior.spec.ts:124:20

Could this be related to the prettier change? Seems strange