Objectstore GC Repack unit tests rely on a specific string in an exception message.

Removed the changelog entries for 4.0-2 from cta.spec.in.  The updated version of these should be put back when the next release is made

Refactors XrootCl.cpp to sanitise value returned by
`XrdCl::XRootDStatus::ToStr()`

[cta-taped] Added a specific error message when the drive device file is not found when a drive is set UP

[Repack] The repack subrequests are queued by batch of 500. They are also deleted by batch of 500 when the repack request is deleted

Fixed.

- BROKEN tape cannot be queued for repack
- DISABLED tape cannot be queued for repack if the --disabledtape flag has not been provided by the user
- NOT FULL tape cannot be queued for repack

[cta-admin] Cleaned cta-admin deprecated methods and remove fields for cta-admin --json output of the commands that were modified by CTA v4.0

- cta-admin --json sq showqueues does not show maxdrives anymore but read/write max drives
- cta-admin --json showqueues does not display the next mounts, empty tapes, readonly tapes and disabled tapes anymore
- cta-admin --json mountpolicy ls does not display the old maxDrivesAllowed parameter anymore
- cta-admin --json tapefile ls does not display supersededByVid and supersededByFseq anymore

- next mounts was introduced to anticipate the drive dedication
  implementation. As it is not implemented, it is removed from the cta-admin sq output

- ADD NOT NULL CONSTRAINT TO VIRTUAL_ORGANIZATION.READ_MAX_DRIVES
- ADD NOT NULL CONSTRAINT TO VIRTUAL_ORGANIZATION.WRITE_MAX_DRIVES
- removed the MOUNT_POLICY.MAX_DRIVES_ALLOWED column
- Migration scripts

- NOT NULL CONSTRAINT on TAPE_STATE
- NOT NULL CONSTRAINT on STATE_UPDATE_TIME
- NOT NULL CONSTRAINT on STATE_MODIFIED_BY
- Removed the columns TAPE.IS_DISABLED and TAPE.IS_READ_ONLY and their
  constraints