[Improvement] Rework rabbitmq.resources.storageclass parameter to use common storageClass format #21
Description
According to deployment parameters https://github.com/Netcracker/qubership-rabbitmq/blob/main/docs/public/installation.md#rabbitmq rabbitmq.resources.storageclass with lowercase c should be used.
It can be misleading, since the generally accepted format assumes using storageClass as specified further for backupDaemon.storageClass parameter