This ticket is to document community requirements and the migration plan to decommission Nexus

Description from: IT-23352
FD.io project data (logs, archived artifacts, & docs) are now being uploaded to Amazon S3 buckets instead of nexus.fd.io. In order to complete the retirement of nexus.fd.io, data currently residing on nexus shall be migrated to amazon S3.

This ticket will be used to document what needs to be migrated from nexus, where it will be migrated to in amazon s3, and track the completion status of the migration.