Change log for AWS_ELB

Date	Changes
2024-11-12	Enhancement: - Added support to parse new format of syslog logs.
2024-03-22	Enhancement: - Added new Grok pattern to support new pattern of JSON logs. - Added support for CEF pattern logs. - Mapped "dst_ip" to "target.ip". - Mapped "dst_port" to "target.port". - Mapped "sip" to "principal.ip". - Mapped "request_processing_time", "target_processing_time", "siteid", "fileId", and "response_processing_time" to "security_result.detection.fields". - Aligned mappings for "principal.ip" and "principal.asset.ip". - Aligned mappings for "target.ip" and "target.asset.ip". - Aligned mappings for "target.hostname" and "target.asset.hostname". - Mapped "cipher" to "network.tls.cipher". - Mapped "version" to "network.tls.version". - Mapped "Customer" to "principal.user.user_display_name".
2022-05-27	Enhancement - Modified the value stored in metadata.product_name to 'AWS Elastic Load Balancer'.