### 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: int, max_iterations: int = 3):
        all_messages = []
        for _ in range(max_iterations):
            try:
                messages = sqs_receive_messages_delete(queue_url, wait_time=5)
            except KeyError:
                
                continue
            all_messages.extend(messages)
            if len(all_messages) >= expected_messages:
                return all_messages[:expected_messages]
        raise AssertionError(f"max iterations reached with {len(all_messages)} messages received")
    return factory
@pytest.fixture
def sqs_queue(sqs_create_queue):
    return sqs_create_queue()
@pytest.fixture
def sqs_queue_arn(sqs_client):
    def _get_arn(queue_url: str) -> str:
        return sqs_client.get_queue_attributes(QueueUrl=queue_url, AttributeNames=["QueueArn"])[
            "Attributes"
        ]["QueueArn"]
    return _get_arn
@pytest.fixture
def sqs_queue_exists(sqs_client):
    def _queue_exists(queue_url: str) -> bool: