### 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_
tables = []
    def factory(**kwargs):
        kwargs["client"] = dynamodb_client
        if "table_name" not in kwargs:
            kwargs["table_name"] = f"test-table-{short_uid()}"
        if "partition_key" not in kwargs:
            kwargs["partition_key"] = "id"
        tables.append(kwargs["table_name"])
        return create_dynamodb_table(**kwargs)
    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 s3_create_bucket(s3_client, s3_resource):