Since Symfony 7.4, JsonStreamer encode arrays as objects

[simondaigre]

API Platform version(s) affected: x.y.z
4.1.14

Description
There is an encofing issue with SF 7.4 when JsonStreamer is enabled:

SF 7.3

[
  {
    "cities": [
      {
        "name": "Paris"
      },
      {
        "name": "La Rochelle"
      }
    ]
  }
]

SF 7.4

[
  {
    "cities": {
      "0": {
        "name": "Paris"
      },
      "1": {
        "name": "La Rochelle"
      }
    }
  }
]

Weirdly, manually using JsonStreamer with SF 7.3 produces the 7.4 result. Only APIP + SF 7.3 is correct.

Also on tests(maybe separate issue ?), the client created with ApiTestCase receive no content with 7.4 and JsonStreamer enabled (works in 7.3).

How to reproduce
https://github.com/simondaigre/apip-repro

[soyuka]

How is your cities type? the type info component checks if an array is a list or not I think that this bug is either because of wrong configuration or a problem that needs fixing inside symfony (not in API Platform).

[simondaigre]

This : https://github.com/simondaigre/apip-repro/blob/main/src/Dto/PersonDto.php

What I don't understand is why using JsonStreamer directly doesn't work either in SF 7.3 or 7.4. It works with API Platform w/ Symfony 7.3, but doesn't work with SF 7.4 :
https://github.com/simondaigre/apip-repro/blob/main/src/Controller/IndexController.php