Change log for JUNIPER_MIST

Date	Changes
2024-11-14	Enhancement: - Added support for new pattern of JSON logs.
2024-07-08	Enhancement: - Mapped "event.ssids" and "event.bssids" to "principal.resource.attribute.labels".
2024-06-04	Enhancement: - Mapped "event.admin_name" to "principal.administrative_domain". - Mapped "event.src_ip", "event.client_ip", and "event.ip" to "principal.ip". - Mapped "event.device_name" and "event.client_hostname" to "principal.hostname". - Mapped "event.device_type", "event.mxedge_name", "event.ssid", and "event.mxedge_id" to "principal.resource.attribute.labels". - Mapped "event.mac" to "principal.mac". - Mapped "event.user_agent" to "network.http.user_agent" and "network.http.parsed_user_agent". - Mapped "event.message" to "metadata.description". - Mapped "event.client_username" to "principal.user.user_display_name". - Mapped "event.ap_name" to "principal.application".
2024-05-03	Enhancement: - Mapped "site_id" to "src.asset.asset_id". - Mapped "site_name" to "src.asset.location.name". - Mapped "group" to "src.user.group_identifiers". - Mapped "hostnames" to "principal.hostname" and "principal.asset.hostname". - Mapped "severity" to "security_result.severity". - Mapped "type" to "metadata.product_event_type". - Mapped "org_id" to "principal.asset_id". - Mapped "id" to "principal.asset.asset_id". - If "has_principal" is "true" and "has_target" is "false", then set "metadata.event_type" to "USER_UNCATEGORIZED", else set "metadata.event_type" to "GENERIC_EVENT".
2023-02-24	Newly created parser.