### 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 _is_change_set_created_and_available(change_set_id: str):
        def _inner():
            change_set = cfn_client.describe_change_set(ChangeSetName=change_set_id)
            return (
                
                change_set.get("Status") == "FAILED"
                and change_set.get("ExecutionStatus") == "UNAVAILABLE"
            )
        return _inner
    return _is_change_set_created_and_available
@pytest.fixture
def is_stack_created(cfn_client):
    return _has_stack_status(cfn_client, ["CREATE_COMPLETE", "CREATE_FAILED"])
@pytest.fixture
def is_stack_updated(cfn_client):
    return _has_stack_status(cfn_client, ["UPDATE_COMPLETE", "UPDATE_FAILED"])
@pytest.fixture
def is_stack_deleted(cfn_client):
    return _has_stack_status(cfn_client, ["DELETE_COMPLETE"])
def _has_stack_status(cfn_client, statuses: List[str]):
    def _has_status(stack_id: str):
        def _inner():
            resp = cfn_client.describe_stacks(StackName=stack_id)
            s = resp["Stacks"][0]  
            return s.get("StackStatus") in statuses
        return _inner
    return _has_status
@pytest.fixture
def is_change_set_finished(cfn_client):