Change log for AZURE_NSG_FLOW

Date Changes
2025-01-23 Enhancement:
- Added "gsub" to parse new type of logs.
- Mapped "record_flowLogGUID" to "metadata.product_log_id".
- Mapped "flow_aclID", "record_flowLogResourceID" to "security_result.detection_fields".
- Mapped "record_flowLogVersion" to "metadata.product_version".
- When "record_flowLogVersion" is "4" then mapped "trafficDecision_value" to "additional.fields".
- When "record_flowLogVersion" is "4" then mapped "flowstate" to "security_result.action".
2025-01-16 Enhancement:
- Changed "match" mapping from "record.time" to "time".
2024-11-26 Enhancement:
- Added support for new format of JSON logs.
2022-04-18 Enhancement-Added mappings for principal.ip in place of src.ip.