### 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 wait_for_table_active(table_name: str, client=None):
        def wait():
            return (client or dynamodb_client).describe_table(TableName=table_name)["Table"][
                "TableStatus"
            ] == "ACTIVE"
        poll_condition(wait, timeout=30)
    return wait_for_table_active
@pytest.fixture
def dynamodb_create_table_with_parameters(dynamodb_client, dynamodb_wait_for_table_active):
    tables = []
    def factory(**kwargs):
        if "TableName" not in kwargs:
            kwargs["TableName"] = f"test-table-{short_uid()}"
        tables.append(kwargs["TableName"])
        response = dynamodb_client.create_table(**kwargs)
        dynamodb_wait_for_table_active(kwargs["TableName"])
        return response
    yield factory
    
    for table in tables:
        try:
            
            dynamodb_wait_for_table_active(table)
            dynamodb_client.delete_table(TableName=table)
        except Exception as e:
            LOG.debug("error cleaning up table %s: %s", table, e)
@pytest.fixture
def dynamodb_create_table(dynamodb_client, dynamodb_wait_for_table_active):