Change log for SERVICENOW_AUDIT

Date Changes
2025-11-14 Enhancement:
- `event.idm.read_only_udm.metadata.event_timestamp`: Newly mapped `sys_created_on` raw log field with `event.idm.read_only_udm.metadata.event_timestamp` UDM field.
- `event.idm.read_only_udm.metadata.product_log_id`: Newly mapped `sys_id` raw log field with `event.idm.read_only_udm.metadata.product_log_id` UDM field.
- `event.idm.read_only_udm.principal.asset.ip`: Newly mapped `parm2` raw log field with `event.idm.read_only_udm.principal.asset.ip` UDM field.
- `event.idm.read_only_udm.principal.ip`: Newly mapped `parm2` raw log field with `event.idm.read_only_udm.principal.ip` UDM field.
- `event.idm.read_only_udm.principal.user.email_addresses`: Newly mapped `user_id`, `parm1`, and `parm2` raw log field with `event.idm.read_only_udm.principal.user.email_addresses` UDM field.
- `event.idm.read_only_udm.principal.user.user_display_name`: Newly mapped `user_name` raw log field with `event.idm.read_only_udm.principal.user.user_display_name` UDM field.
- `event.idm.read_only_udm.principal.user.userid`: Newly mapped `user_id` raw log field with `event.idm.read_only_udm.principal.user.userid` UDM field.
- `event.idm.read_only_udm.target.asset.hostname`: Newly mapped `claimed_by` raw log field with `event.idm.read_only_udm.target.asset.hostname` UDM field.
- `event.idm.read_only_udm.target.hostname`: Newly mapped `claimed_by` raw log field with `event.idm.read_only_udm.target.hostname` UDM field.
- `event.idm.read_only_udm.target.resource.attribute.labels`: Newly mapped `claimed_by_data` raw log field with `event.idm.read_only_udm.target.resource.attribute.labels` UDM field.
- `event.idm.read_only_udm.target.resource.name`: Newly mapped `instance` raw log field with `event.idm.read_only_udm.target.resource.name` UDM field.
- `event.idm.read_only_udm.target.url`: Newly mapped `uri` raw log field with `event.idm.read_only_udm.target.url` UDM field.
- `event.idm.read_only_udm.additional.fields`: Newly mapped `system_property`, `name`, `derived_priority`, `sys_mod_count`, `partition`, `processing_duration`, `state`, `descriptive_name`, `process_on`, `processed`, `queue`, `sys_updated_on`, `sys_updated_by`, `sys_created_by`, and `table` raw log fields with `event.idm.read_only_udm.additional.fields` UDM field.
- `event.idm.read_only_udm.metadata.event_type`: If `desc` contains `login`, or `name` is `session.established` or `login` and a user is present, updated to `USER_LOGIN`.
- `event.idm.read_only_udm.metadata.event_type` and `event.idm.read_only_udm.extensions.auth.type`: If `name` is `logout` or `session.terminated` and a user is present, updated to `USER_LOGOUT` and `event.idm.read_only_udm.extensions.auth.type` to `AUTHTYPE_UNSPECIFIED`.
- `event.idm.read_only_udm.metadata.event_type`: If a user is present and the event is not a login or logout, updated to `USER_UNCATEGORIZED`.
2025-05-21 Enhancement:
- Added Grok pattern to provide support for SYSLOG logs.
- Extracted the `User` from the log using the Grok pattern, which is mapped to `event.idm.read_only_udm.principal.user.userid`.
- `event.idm.read_only_udm.principal.ip`: Newly mapped "statprin_ipus" raw log field with `event.idm.read_only_udm.principal.ip` UDM field.
- `event.idm.read_only_udm.principal.asset.ip`: Newly mapped "statprin_ipus" raw log field with `event.idm.read_only_udm.principal.asset.ip` UDM field.
- `event.idm.read_only_udm.additional.fields`: Newly mapped "exportByteSize" and "exportRecordCount" raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- Set `event.idm.read_only_udm.metadata.event_type` to `STATUS_UPDATE` when `event.idm.read_only_udm.principal.ip` is getting populated.
2025-05-16 Enhancement:
- Added Grok pattern to provide support for SYSLOG logs.
- `event.idm.read_only_udm.security_result.action_details`: Newly mapped "status" raw log field with `event.idm.read_only_udm.security_result.action_details` UDM field.
- If `status` is equal to `successful` then set `security_result_action` to `ALLOW`.
- If `status` is equal to `failure` then set `security_result_action` to `BLOCK`.
- `event.idm.read_only_udm.security_result.action`: Newly mapped "security_result_action" raw log field with `event.idm.read_only_udm.security_result.action` UDM field.
- `event.idm.read_only_udm.security_result`: Newly merged "security_result" to "event.idm.read_only_udm.security_result" UDM field.
2025-01-15 - Newly created parser