* Add attestation options to config
* Add join-config migration path for clusters with old measurement format
* Always create MAA provider for Azure SNP clusters
* Remove confidential VM option from provider in favor of attestation options
* cli: add config migrate command to handle config migration (#1678)
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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
The new command allows checking the status of an upgrade
and which versions are installed.
Also remove the unused restclient.
And make GetConstellationVersion a function.
These backups could be used in case an upgrade
misbehaves after helm declared it as successful.
The manual backups are required as helm-rollback
won't touch custom resources and changes to CRDs
delete resources of the old version.
