Object Store recovery has objectStoreRecoveryCluster hardcoded as name

[majermarci]

In the cluster chart I had issues recovering from an s3 backup, as the externalClusters[*].name and bootstrap.recovery.source in created Cluster resource are both hardcoded to "objectStoreRecoveryCluster" value, which breaks the recovery with an error that it cannot find the backup.

This could be adressed by setting these two values to .Values.recovery.clusterName or default them the cluster's name in _bootstrap.tpl:

{{ default (include "cluster.fullname" .) .Values.recovery.clusterName }}