Change log for ARUBA_AIRWAVE

Date Changes
2025-01-03 Enhancement:
- Added a Grok pattern to parse syslog logs.
- Mapped "hostname" to "principal.hostname" and "principal.asset.hostname".
- Mapped "pid1" to "principal.process.pid".
- Mapped "description" to "metadata.description".
- Mapped "target_resource" to "target.resource.id".
- Mapped "column3" to "additional.fields".
- Mapped "column4" to "principal.ip" and "principal.asset.ip".
- Mapped "column6" to "target.resource.name".
2023-12-06 - Added a Grok pattern to parse SYSLOG logs.