chore: allow calling spawnSync on Node.js file inside test

[mxschmitt]

Fixes #24516

Relates #16733

[github-actions]

Test results for "tests 1"

1 failed
❌ [playwright-test] › expect-to-pass.spec.ts:208:5 › should show intermediate result for toPass that spills over test time

13 flaky
⚠️ [chromium] › library/tracing.spec.ts:239:5 › should not include trace resources from the previous chunks
⚠️ [chromium] › library/inspector/cli-codegen-pytest.spec.ts:56:5 › should save the codegen output to a file if specified
⚠️ [chromium] › page/page-event-request.spec.ts:101:3 › should report navigation requests and responses handled by service worker
⚠️ [firefox] › page/page-event-request.spec.ts:162:3 › should return response body when Cross-Origin-Opener-Policy is set
⚠️ [playwright-test] › ui-mode-trace.spec.ts:22:5 › should merge trace events
⚠️ [playwright-test] › ui-mode-trace.spec.ts:126:5 › should show snapshots for sync assertions
⚠️ [chromium] › library/tracing.spec.ts:239:5 › should not include trace resources from the previous chunks
⚠️ [chromium] › page/page-event-request.spec.ts:101:3 › should report navigation requests and responses handled by service worker
⚠️ [playwright-test] › ui-mode-test-progress.spec.ts:218:5 › should show trace w/ multiple contexts
⚠️ [webkit] › library/browsercontext-reuse.spec.ts:50:1 › should reset serviceworker
⚠️ [webkit] › library/inspector/cli-codegen-pytest.spec.ts:56:5 › should save the codegen output to a file if specified
⚠️ [playwright-test] › ui-mode-trace.spec.ts:53:5 › should merge web assertion events
⚠️ [playwright-test] › ui-mode-trace.spec.ts:126:5 › should show snapshots for sync assertions

25025 passed, 583 skipped
✔️✔️✔️

❌ [playwright-test] › expect-to-pass.spec.ts:208:5 › should show intermediate result for toPass that spills over test time

Error: expect(received).toContain(expected) // indexOf

Expected substring: "Expected: 2"
Received string:    "
Running 1 test using 1 worker·
  ✘  1 a.spec.ts:3:11 › should fail (1.0s)··
  1) a.spec.ts:3:11 › should fail ──────────────────────────────────────────────────────────────────·
    Test timeout of 1000ms exceeded.·
  1 failed
    a.spec.ts:3:11 › should fail ───────────────────────────────────────────────────────────────────
"

  218 |   }, { timeout: 1000 });
  219 |   expect(result.exitCode).toBe(1);
> 220 |   expect(result.output).toContain('Expected: 2');
      |                         ^
  221 |   expect(result.output).toContain('Received: 3');
  222 | });
  223 |

    at /Users/runner/work/playwright/playwright/tests/playwright-test/expect-to-pass.spec.ts:220:25

Merge workflow run.