Add new REPACKING_DISABLED state to DB schema

As shown in the attachment bellow, we need a REPACKING_DISABLED state to move the tape into when there is an issue with the REPACK.

At the moment, the tapes would be moved into DISABLED, which ends up mixing of user and repack requests. We don't want that.

Instead, the REPACKING_DISABLED clearly states that the tape is repacking, disabled, and under operator land (not user land).