Bug: Upsynced resources are "Synced" when the initial synctarget is not ready/gone

[jmprusi]

When upsyncing a resource, if the synctarget referenced in the "Upsync" state is deleted or non-healthy, then the scheduler will remove the "Upsync" state and set the "Sync" state when there's a Synctarget healthy.

The workload scheduler should:

• Remove an upsynced resource if the synctarget is gone
• Don't change the scheduling of the resource if the synctarget is non-healthy.