### 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
"accountId": account_id,
        "apiId": api_id,
        "resourcePath": resource_path or relative_path,
        "domainPrefix": invocation_context.domain_prefix,
        "domainName": invocation_context.domain_name,
        "resourceId": resource_id,
        "requestId": long_uid(),
        "identity": {
            "accountId": account_id,
            "sourceIp": source_ip,
            "userAgent": headers.get("User-Agent"),
        },
        "httpMethod": method,
        "protocol": "HTTP/1.1",
        "requestTime": pytz.utc.localize(datetime.datetime.utcnow()).strftime(
            REQUEST_TIME_DATE_FORMAT
        ),
        "requestTimeEpoch": int(time.time() * 1000),
        "authorizer": {},
    }
    
    auth_context = invocation_context.auth_context
    if auth_context:
        request_context["authorizer"] = auth_context
    request_context["identity"].update(invocation_context.auth_identity or {})
    if not is_test_invoke_method(method, path):
        request_context["path"] = (f"/{stage}" if stage else "") + relative_path
        request_context["stage"] = stage
    return request_context
def set_api_id_stage_invocation_path(