### 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("es")
@pytest.fixture(scope="class")
def opensearch_client() -> "OpenSearchServiceClient":
    return _client("opensearch")
@pytest.fixture(scope="class")
def redshift_client() -> "RedshiftClient":
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@pytest.fixture(scope="class")
def firehose_client() -> "FirehoseClient":
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@pytest.fixture(scope="class")
def cloudwatch_client() -> "CloudWatchClient":
    return _client("cloudwatch")
@pytest.fixture(scope="class")
def sts_client() -> "STSClient":
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@pytest.fixture(scope="class")
def ec2_client() -> "EC2Client":
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@pytest.fixture(scope="class")
def rg_client() -> "ResourceGroupsClient":
    return _client("resource-groups")
@pytest.fixture(scope="class")
def rgsa_client() -> "ResourceGroupsTaggingAPIClient":
    return _client("resourcegroupstaggingapi")
@pytest.fixture(scope="class")
def route53_client() -> "Route53Client":
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@pytest.fixture
def dynamodb_wait_for_table_active(dynamodb_client):