Change log for AWS_RDS

Date Changes
2025-03-28 Enhancement:
- Added grok patterns inorder to parse the logs with new syslog format.
- event.idm.read_only_udm.metadata.product_event_type: Newly mapped `prod_event_type` raw log field with `event.idm.read_only_udm.metadata.product_event_type` UDM field.
- event.idm.read_only_udm.target.resource.name: Newly mapped `arn` raw log field with `event.idm.read_only_udm.target.resource.name` UDM field.
- event.idm.read_only_udm.network.ip_protocol: Newly mapped `PROTOCOL` raw log field with `event.idm.read_only_udm.network.ip_protocol` UDM field.
- event.idm.read_only_udm.principal.ip: Newly mapped `address_data.HOST` raw log field with `event.idm.read_only_udm.principal.ip` UDM field.
- event.idm.read_only_udm.principal.asset.ip: Newly mapped `address_data.HOST` raw log field with `event.idm.read_only_udm.principal.asset.ip` UDM field.
- event.idm.read_only_udm.principal.port: Newly mapped `PORT` to `event.idm.read_only_udm.principal.port`.
- event.idm.read_only_udm.target.resource.attribute.labels: Newly mapped `SID` raw log field with `event.idm.read_only_udm.target.resource.attribute.labels` UDM field.
- event.idm.read_only_udm.target.user.userid: Newly mapped `USER` raw log field with `event.idm.read_only_udm.target.user.userid` UDM field.
- event.idm.read_only_udm.target.hostname: Newly mapped `connect_data.HOST` raw log field with `event.idm.read_only_udm.target.hostname` UDM field.
- event.idm.read_only_udm.target.asset.hostname: Newly mapped `connect_data.HOST` raw log field with `event.idm.read_only_udm.target.asset.hostname` UDM field.
- event.idm.read_only_udm.target.resource.name: Newly mapped `PROGRAM` raw log field with `event.idm.read_only_udm.target.resource.name` UDM field.
- event.idm.read_only_udm.security_result.action_details: Newly mapped `action_details` raw log field with `event.idm.read_only_udm.security_result.action_details` UDM field.
2025-03-13 Enhancement:
- Added support for a new syslog log format.
- Added support to parse the new format of "timestamp".
2025-02-20 Enhancement:
- Added support for a new syslog log format.
2025-02-18 Enhancement:
- Mapped "src_port" to "principal.port".
- Mapped "user_name" to "principal.user.user_display_name".
- Mapped "database_name" to "target.resource.name" and set "target.resource.type" to "DATABASE".
- Mapped "description" to "metadata.description".
2025-01-30 Enhancement:
- Added support for new syslog log format.
2024-12-20 Enhancement:
- Added support for new log format.
- Mapped "owner" to "principal.user.userid".
- Mapped "logGroup" to "security_result.about.resource.name".
- Mapped "logStream" to "security_result.about.resource.attribute.labels".
- Mapped "logevent.id" to "metadata.product_log_id".
- Mapped "logevent.message" to "security_result.description".
- Mapped "resource_name" to "target.resource.name".
- Mapped "src_ip" to "principal.ip".
- Mapped "tar_ip" to "target.ip".
- Mapped "tar_host" to "target.hostname".
- Mapped "subscriptionFilters" to "security_result.about.resource.attribute.labels".
2024-10-30 Enhancement:
- Added support for new log format.
- Mapped "type" to "additional.fields".
2024-10-03 Enhancement:
- Added support for new log format.
2023-04-24 - Newly created parser.