Change log for AWS_API_GATEWAY

Date Changes
2025-02-13 Enhancement:
- Added "gsub" to parse new type of logs.
- Mapped "account_id", "api_id", "aws_endpoint_request_id", "caller", "domain_prefix", "extended_request_id", "identity_user_arn", "resource_path", "stage", "waf_response_code", and "web_acl_arn" to "additional.fields".
- Mapped "domain_name" to "principal.administrative_domain".
- Mapped "request_time" to "security_result.detection_fields".
- Mapped "http_method" to "network.http.method".
- Mapped "identity_principal_org_id" to "principal.resource.attribute.labels".
- Mapped "identity_source_ip_address" to "principal.ip".
- Mapped "identity_user" to "principal.user.userid".
2024-07-24 - Newly created parser.