[eLife] Split S3 bucket name
Description; Currently, the bucket name is included as part of the S3_ENDPOINT URL for S3 only. Minio doesn't support including the bucket name in the endpoint, so this is an inconsistency. One way to resolve this is to split the bucket name out of S3_ENDPOINT and have it in a separate S3_BUCKET variable. This would then work consistently for both S3 and Minio.
Acceptance criteria; ?