### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When starting the transcription job in response job object is null:

<img width="1154" alt="Screenshot 2023-04-03 at 09 21 09" src="https://user-images.githubusercontent.com/454412/229447066-1671f811-da49-478d-bf24-252f30b17699.png">


### Expected Behavior

Response from the real AWS stack - job object is not null

<img width="1161" alt="Screenshot 2023-04-03 at 09 30 13" src="https://user-images.githubusercontent.com/454412/229441498-06125248-3b68-4679-8204-0163e8245db6.png">


### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

Using test containers, reproducing project can be found here:

https://github.com/kkocel/local-stack-transcribe-repro

### Environment

```markdown
- OS: macOS
- LocalStack: latest
```


### Anything else?

_No response_
def factory(
        queue_url: str,
        expected_messages: Optional[int] = None,
        wait_time: Optional[int] = 5,
    ):
        response = sqs_client.receive_message(
            QueueUrl=queue_url,
            MessageAttributeNames=["All"],
            VisibilityTimeout=0,
            WaitTimeSeconds=wait_time,
        )
        messages = []
        for m in response["Messages"]:
            message = json.loads(to_str(m["Body"]))
            messages.append(message)
        if expected_messages is not None:
            assert len(messages) == expected_messages
        for message in response["Messages"]:
            sqs_client.delete_message(QueueUrl=queue_url, ReceiptHandle=message["ReceiptHandle"])
        return messages
    return factory
@pytest.fixture
def sqs_receive_num_messages(sqs_receive_messages_delete):