### 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
return _client("ssm")
@pytest.fixture(scope="class")
def lambda_client() -> "LambdaClient":
    return _client("lambda")
@pytest.fixture(scope="class")
def kinesis_client() -> "KinesisClient":
    return _client("kinesis")
@pytest.fixture(scope="class")
def kms_client() -> "KMSClient":
    return _client("kms")
@pytest.fixture(scope="class")
def logs_client() -> "CloudWatchLogsClient":
    return _client("logs")
@pytest.fixture(scope="class")
def events_client() -> "EventBridgeClient":
    return _client("events")
@pytest.fixture(scope="class")
def secretsmanager_client() -> "SecretsManagerClient":
    return _client("secretsmanager")
@pytest.fixture(scope="class")
def stepfunctions_client() -> "SFNClient":
    return _client("stepfunctions")
@pytest.fixture(scope="class")
def ses_client() -> "SESClient":
    return _client("ses")
@pytest.fixture(scope="class")
def acm_client() -> "ACMClient":
    return _client("acm")
@pytest.fixture(scope="class")
def es_client() -> "ElasticsearchServiceClient":