Change log for GCP_APP_ENGINE

Date	Changes
2025-12-29	- event.idm.read_only_udm.principal.ip: Newly mapped `protoPayload.requestMetadata.callerIp` raw log field with `event.idm.read_only_udm.principal.ip` UDM field. - event.idm.read_only_udm.principal.asset.ip: Newly mapped `protoPayload.requestMetadata.callerIp` raw log field with `event.idm.read_only_udm.principal.asset.ip` UDM field. - event.idm.read_only_udm.principal.user.email_addresses: Newly mapped `protoPayload.authenticationInfo.principalEmail` raw log field with `event.idm.read_only_udm.principal.user.email_addresses` UDM field. - event.idm.read_only_udm.metadata.product_event_type: Newly mapped `protoPayload.methodName` 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 `protoPayload.resourceName` raw log field with `event.idm.read_only_udm.target.resource.name` UDM field. - event.idm.read_only_udm.target.application: Newly mapped `protoPayload.serviceName` raw log field with `event.idm.read_only_udm.target.application` UDM field. - event.idm.read_only_udm.target.resource.attribute.labels: Newly mapped `protoPayload.resourceLocation.currentLocations` raw log field with `event.idm.read_only_udm.target.resource.attribute.labels` UDM field. - event.idm.read_only_udm.principal.resource.attribute.labels: Newly mapped `protoPayload.authenticationInfo.oauthInfo.oauthClientId` raw log field with `event.idm.read_only_udm.principal.resource.attribute.labels` UDM field. - event.idm.read_only_udm.additional.fields: Newly mapped `protoPayload.requestMetadata.requestAttributes.time`, `operation.first`, `protoPayload.serviceData.updateService.request.updateMask`, `operation.id`, `protoPayload.authenticationInfo.serviceAccountKeyName` raw log fields with `event.idm.read_only_udm.additional.fields` UDM field. - event.idm.read_only_udm.security_result.rule_name: Newly mapped `protoPayload.authorizationInfo.permission` raw log field with `event.idm.read_only_udm.security_result.rule_name` UDM field. - event.idm.read_only_udm.security_result.description: Newly mapped `protoPayload.authorizationInfo.permissionType` raw log field with `event.idm.read_only_udm.security_result.description` UDM field. - event.idm.read_only_udm.security_result.action: Newly mapped `protoPayload.authorizationInfo.granted` raw log field with `event.idm.read_only_udm.security_result.action` UDM field. - The conditional logic for security_result.severity was updated to include "NOTICE" in addition to "INFO" for setting the severity to "INFORMATIONAL".
2024-08-01	- If principal machine data is present, then set "metadata.event_type" to "STATUS_UPDATE". - Mapped "protoPayload.ip" to "principal.ip" and "principal.asset.ip". - Mapped "protoPayload.appId" to "principal.resource.attribute.labels". - Mapped "protoPayload.host" to "principal.hostname". - Mapped "protoPayload.method" to "network.http.method". - Mapped "protoPayload.@type" , "labels.clone_id" and "operation.producer" to "additional.labels".
2024-06-03	- Added support for a new type of JSON logs.
2024-03-05	- Newly created parser.