Since the host_guid is unique to the printer, it is more reliable for
identifying the cloud printers. This comes in handy when the cloud
printer is removed from the account and re-added. With the host_guid,
the printer that is added again can be properly identified as an
existing Cura cloud printer, and be linked to the original. To
achieve that, the META_CLUSTER_ID of the printer is updated with the
new one that is generated when the printer is added again to the
account.
CURA-7505
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