Change log for SLACK_AUDIT

Date Changes
2023-10-27 Enhancement:
- Mapped "details.reason" to "security_result.description".
2022-08-03 Enhancement:
- Modified mapping for "prin_ip" from "principal.nat_ip" to "principal.ip".
2022-04-07 - Corrected mapping for product_object_id.
- Corrected the user mappings for second log format.