Change log for FORCEPOINT_MAIL_RELAY

Date Changes
2025-04-09 Enhancement:
- event.idm.read_only_udm.security_result.summary: Newly mapped "summary" raw log field with event.idm.read_only_udm.security_result.summary UDM field.
- event.idm.read_only_udm.security_result.action: When "summary" is similar to "clean" then mapped "ALLOW" to "security_result.action".
2024-07-18 - Newly created parser.