Change log for SYSDIG

Date Changes
2024-01-05 - When "severity" is 0, 1, 2, 3, then changed mapping of "security_result.severity" from "LOW" to "HIGH".
- When "severity" is 6, then changed mapping of "security_result.severity" from "HIGH" to "LOW".
- When "severity" is 7, then changed mapping of "security_result.severity" from "HIGH" to "INFORMATIONAL".
- Added "drop" for logs not in JSON format.
- Added "on_error" to "timestampRFC3339Nano" date mapping.
2022-10-07 Newly created parser.