### 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_
return retry(_create_function, retries=3, sleep=4)
    yield _create_lambda_function
    for arn, client in lambda_arns_and_clients:
        try:
            client.delete_function(FunctionName=arn)
        except Exception:
            LOG.debug(f"Unable to delete function {arn=} in cleanup")
    for log_group_name in log_groups:
        try:
            logs_client.delete_log_group(logGroupName=log_group_name)
        except Exception:
            LOG.debug(f"Unable to delete log group {log_group_name} in cleanup")
@pytest.fixture
def check_lambda_logs(logs_client):
    def _check_logs(func_name: str, expected_lines: List[str] = None) -> List[str]:
        if not expected_lines:
            expected_lines = []
        log_events = get_lambda_logs(func_name, logs_client=logs_client)
        log_messages = [e["message"] for e in log_events]
        for line in expected_lines:
            if ".*" in line:
                found = [re.match(line, m, flags=re.DOTALL) for m in log_messages]
                if any(found):
                    continue
            assert line in log_messages
        return log_messages
    return _check_logs
@pytest.fixture
def create_policy(iam_client):