Change log for BRO_JSON

Date Changes
2024-01-31 Handled the extra spaces in the `regex` condition while setting the log types.
2023-11-29 Aligned 'principal/target.hostname' and 'principal/target.asset.hostname' mapping.
2023-10-04 Added mapping to "network.tls.certificate.md5", "network.tls.certificate.sha1" and "network.tls.certificate.sha256".
2023-06-14 Updated the parser to include "parse_network_http_user_agent" to use "Parsed User Agent" and "User Agent".
2022-09-28 Promoted BRO_JSON parser to default.
For the field mapping differences, see field mapping changes