doc: fix process import in test runner workerId example

Signed-off-by: Daijiro Wachi <daijiro.wachi@gmail.com>
PR-URL: #67316
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>

Author: watilde

doc/api/test.md

@@ -4774,7 +4774,7 @@ server ports) across concurrent test files:
 
 ```mjs
 import { test } from 'node:test';
-import { process } from 'node:process';
+import process from 'node:process';
 
 test('database operations', async (t) => {
   // Worker ID is available via context