[ios][camera] Fix takePicture in simulator

[alanjhughes]

Why

Close #29987
takePictureForSimulator accepted a CameraViewLegacy type as an argument which caused the wrong type of view to be passed to the AsyncFunction body. Because of this an error was thrown for an invalid number of arguments being passed to the legacy version of takePicture.

How

Conform both new and legacy views to a protocol with the onPictureSaved dispatcher so takePictureForSimulator will accept either type of view

Test Plan

Bare expo on a physical device and simulator ✅

[expo-bot]

The Pull Request introduced fingerprint changes against the base commit: 5cee7ec

Fingerprint diff

[
  {
    "op": "changed",
    "source": {
      "type": "dir",
      "filePath": "../../packages/expo-camera/ios",
      "reasons": [
        "expoAutolinkingIos"
      ],
      "hash": "b002a72d150f4261b3ca2ca8888c905e4507a91e"
    }
  }
]

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