Change log for FORTINET_FORTIDDOS

Date Changes
2026-07-29 Enhancement:
- Added gsub to remove leading double quote from desc_Data, spp_name and subnet_name fields.
- event.idm.read_only_udm.principal.labels: Removed mapping of date, time, tz and dir raw log fields from event.idm.read_only_udm.principal.labels UDM field as it is deprecated.
- event.idm.read_only_udm.additional.fields: Mapped date, time, tz and dir raw log fields to event.idm.read_only_udm.additional.fields UDM field.
2025-01-10 - Newly created parser.