Change log for UMBRELLA_WEBPROXY

Date	Changes
2023-10-17	Enhancement: - Mapped "verdict" to "security_result.action".
2023-09-14	Enhancement: - Added v8 support for proxy logs. - Mapped "dlpstatus" to "security_result.detection_fields". - Mapped "certificateErrors" to "security_result.detection_fields". - Mapped "rulesetID" to "security_result.detection_fields". - Mapped "destinationListID" to "security_result.detection_fields". - Mapped "isolateAction" to "security_result.detection_fields". - Mapped "fileAction" to "security_result.detection_fields". - Mapped "warnstatus" to "security_result.detection_fields". - Mapped "avDetections" to "security_result.detection_fields". - Mapped "puas" to "security_result.detection_fields". - Mapped "ampDisposition" to "security_result.detection_fields". - Mapped "ampMalware" to "security_result.detection_fields". - Mapped "ampScore" to "security_result.detection_fields". - Mapped "responseBodySize" to "security_result.detection_fields". - Mapped "requestSize" to "network.sent_bytes". - Mapped "ruleID" to "security_result.rule_id". - Mapped "fileName" to "target.file.names". - Mapped "requestMethod" to "network.http.method".
2023-08-16	Bug-Fix- - Modified the conditional check for "identity" field to support both "username with email" and "only email" - Removed mapping of "identity" to "principal.user.product_object_id" for "AD Users".
2022-12-16	Enhancement- - Modified the conditional check for the field 'email' and mapped to 'principal.user.email_addresses'. - Modified the conditional check for the field 'destinationIp' and mapped to 'target.ip'.
2022-09-02	Enhancement- Migrated the custom parsers into default parser.
2022-08-19	Enhancement-Handled unparsed logs. Added on error condition for field "externalIp".
2022-08-17	Fix - - Added new date type to parse dates of format "MM/dd/yy HH:mm".