### 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
"kinesis:GetRecords",
                "kinesis:GetShardIterator",
                "kinesis:ListShards",
                "kinesis:ListStreams",
                "kinesis:SubscribeToShard",
                "logs:CreateLogGroup",
                "logs:CreateLogStream",
                "logs:PutLogEvents",
            ],
            "Resource": ["*"],
        }
    ],
}
class TestSQSEventSourceMapping:
    
    @pytest.mark.skip_snapshot_verify
    def test_event_source_mapping_default_batch_size(
        self,
        create_lambda_function,
        lambda_client,
        sqs_client,
        sqs_create_queue,
        sqs_queue_arn,
        dynamodb_client,
        dynamodb_create_table,
        lambda_su_role,
        snapshot,
    ):
        snapshot.add_transformer(snapshot.transform.lambda_api())
        function_name = f"lambda_func-{short_uid()}"