fix: Make WebSocketTests work in CI (#33721)

Summary:
This PR reestablish the WebSocketTest in CI which is making the `test_ios_unit` fail.

**Note:** the test_ios_unit is actually running integration tests...

## Changelog

[iOS] [Changed] - Fix the test_ios_unit test

Pull Request resolved: https://github.com/facebook/react-native/pull/33721

Test Plan: The CI of this PR is green. 😬

Reviewed By: cortinico

Differential Revision: D36002823

Pulled By: cipolleschi

fbshipit-source-id: 20eeb08bfd02658ad6579085241f81654f74c1af