Change log for RAPID7_NEXPOSE

Date Changes
2024-05-14 Enhancement:
- Added support to handle new JSON logs.
- Mapped description.text to metadata.description.
- Mapped categories, pci.adjustedCVSSScore, pci.adjustedSeverityScore, pci.fail, and pci.status to additional.fields.
- Mapped cvss.v2.accessComplexity, cvss.v2.accessVector, cvss.v2.authentication, cvss.v2.availabilityImpact, cvss.v2.confidentialityImpact, cvss.v2.integrityImpact, cvss.v2.vector, cvss.v3.attackComplexity, cvss.v3.attackVector, cvss.v3.availabilityImpact, cvss.v3.confidentialityImpact, cvss.v3.privilegeRequired, cvss.v3.integrityImpact, cvss.v3.scope, cvss.v3.userInteraction, and cvss.v3.vector to security_result.detection_fields.
2022-09-27 Enhancement:
- Added support for syslog pattern to parse the unparsed logs.