### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

Basically we want to only run the lambda when an insert is occurring in DynamoDB.
I tested using Dynobase deleting a record and the lambda still triggered.

```
resource "aws_lambda_event_source_mapping" "event-log" {
	event_source_arn  = aws_dynamodb_table.event-log.stream_arn
	function_name     = module.main.lambda-arn
	starting_position = "LATEST"
	enabled = true # change to false when truncating the table in localstack
	maximum_retry_attempts = 1 # limit retry on failure to 1 for now

	# https://dev.to/aws-builders/filtering-dynamodb-streams-before-lambda-p5p
	filter_criteria { # Doesn't seem to work on LocalStack for now
		filter {
			pattern = jsonencode({
				body = {
					eventName : ["INSERT"]
				}
			})
		}
	}
}
```


### 🧑‍💻 Implementation

_No response_

### Anything else?

 https://dev.to/aws-builders/filtering-dynamodb-streams-before-lambda-p5p
def __init__(self, msg, code=400):
        super(ClientError, self).__init__(msg)
        self.code = code
        self.msg = msg
    def get_response(self):
        if isinstance(self.msg, Response):
            return self.msg
        return error_response(self.msg, self.code)
@lru_cache()
def get_default_executor_mode() -> str:
    """
    Returns the default docker executor mode, which is "docker" if the docker socket is available via the docker
    client, or "local"  otherwise.
    :return:
    """
    try:
        return "docker" if DOCKER_CLIENT.has_docker() else "local"
    except Exception:
        return "local"
def get_executor_mode() -> str:
    """
    Returns the currently active lambda executor mode. If config.LAMBDA_EXECUTOR is set, then it returns that,
    otherwise it falls back to get_default_executor_mode().
    :return: the lambda executor mode (e.g., 'local', 'docker', or 'docker-reuse')
    """
    return config.LAMBDA_EXECUTOR or get_default_executor_mode()
def multi_value_dict_for_list(elements: Union[List, Dict]) -> Dict: