refactor!: Set the subproject and dataset creator using the subid/sub value from the payload jwt
This merge request accomplishes the following:
- During subproject registration and dataset registration, set the creator to subid from the authorization jwt. If subid is not present, use the sub value in the jwt.
- Remove the logic to set the cache with subproject details when checking for a subproject's existence
Edited by Varunkumar Manohar