Change log for VELO_FIREWALL

Date Changes
2026-02-12 Enhancement:
- Added new Grok pattern to parse the `sdwan` type logs.
- `event.idm.read_only_udm.metadata.description`: Newly mapped `description` raw log field with `event.idm.read_only_udm.metadata.description` UDM field.
- `event.idm.read_only_udm.metadata.product_event_type`: Newly mapped `product_event_type` raw log field with `event.idm.read_only_udm.metadata.product_event_type` UDM field.
- `event.idm.read_only_udm.additional.fields`: Newly mapped `cloud_software` raw log field with `event.idm.read_only_udm.additional.fields` UDM field, using the key "CLOUD_SOFTWARE".
2024-10-10 Enhancement:
- Mapped "action" field from log to "security_result.action_details".
- If "action" is "Allow", then set "security_result.action as "ALLOW".
2024-09-12 Enhancement:
- Modified the Grok pattern to parse unparsed logs.
2024-06-30 - Newly created parser.