Change log for CLOUDFLARE_AUDIT

Date Changes
2026-01-01 Enhancement:
- Modified the condition to set the event type as USER_RESOURCE_UPDATE_CONTENT only when principal user id or principal email is present.
- Modified the condition to set the event type as USER_RESOURCE_ACCESS only when principal user id and principal machine data is present.
- event.idm.read_only_udm.metadata.event_type: Newly mapped to STATUS_UPDATE when principal machine data is present.
2023-11-27 Enhancement:
- Added a Grok pattern to match new log format.
- Mapped ResourceID to target.resource.product_object_id.
- Mapped metainfo_zone_name to principal.hostname.
- Mapped metainfo_user_id to principal.user.userid.
- Mapped metainfo_user_email to principal.user.email.
- Mapped metainfo_user_tag to principal.user.product_object_id.
- Mapped metainfo fields to security_result.detection_fields.
- Mapped newvalue_session_id to network.session_id.
- Mapped NewValue to security_result.detection_fields.
- Mapped OldValue to security_result.detection_fields.
- If ActorID is present, set metadata.event_type to USER_RESOURCE_ACCESS.
2023-07-09 New parser created.