### 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
stage_name=TEST_STAGE_NAME,
        )
        api_id = result["id"]
        url = path_based_url(api_id=api_id, stage_name=TEST_STAGE_NAME, path=lambda_path)
        result = safe_requests.get(url)
        assert result.status_code == 502
        assert result.headers.get("Content-Type") == "application/json"
        assert json.loads(result.content)["message"] == "Internal server error"
class TestKinesisSource:
    def test_create_kinesis_event_source_mapping(
        self,
        create_lambda_function,
        lambda_client,
        kinesis_client,
        kinesis_create_stream,
        lambda_su_role,
        wait_for_stream_ready,
        logs_client,
    ):
        function_name = f"lambda_func-{short_uid()}"
        stream_name = f"test-foobar-{short_uid()}"
        record_data = "hello"
        num_events_kinesis = 10
        try:
            create_lambda_function(
                func_name=function_name,
                handler_file=TEST_LAMBDA_PYTHON_ECHO,
                runtime=LAMBDA_RUNTIME_PYTHON36,
                role=lambda_su_role,
            )