### 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
actual_record_ids.append(actual_record_id)
                actual_record_ids.sort()
                assert actual_record_ids == [i for i in range(num_records_per_batch)]
        finally:
            lambda_client.delete_event_source_mapping(UUID=uuid)
    def test_disable_kinesis_event_source_mapping(
        self,
        lambda_client,
        kinesis_client,
        create_lambda_function,
        kinesis_create_stream,
        wait_for_stream_ready,
        logs_client,
        lambda_su_role,
    ):
        function_name = f"lambda_func-{short_uid()}"
        stream_name = f"test-foobar-{short_uid()}"
        num_records_per_batch = 10
        try:
            create_lambda_function(
                handler_file=TEST_LAMBDA_PYTHON_ECHO,
                func_name=function_name,
                runtime=LAMBDA_RUNTIME_PYTHON36,
                role=lambda_su_role,
            )
            kinesis_create_stream(StreamName=stream_name, ShardCount=1)
            stream_arn = kinesis_client.describe_stream(StreamName=stream_name)[
                "StreamDescription"
            ]["StreamARN"]
            wait_for_stream_ready(stream_name=stream_name)