### 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
change_set_id: str
    stack_id: str
    stack_name: str
    change_set_name: str
    outputs: Dict[str, str]
    destroy: Callable[[], None]
@pytest.fixture
def deploy_cfn_template(
    cfn_client,
    lambda_client,
    cleanup_stacks,
    cleanup_changesets,
    is_change_set_created_and_available,
    is_change_set_finished,
):
    state = []
    def _deploy(
        *,
        is_update: Optional[bool] = False,
        stack_name: Optional[str] = None,
        change_set_name: Optional[str] = None,
        template: Optional[str] = None,
        template_path: Optional[str | os.PathLike] = None,
        template_mapping: Optional[Dict[str, any]] = None,
        parameters: Optional[Dict[str, str]] = None,
        max_wait: Optional[int] = None,
    ) -> DeployResult:
        if is_update: