claimSize from CR is not taken into account during workspace startup from the "Getting Started" samples (the default value is used)

Steps to reproduce

Set the following configuration in the CR and start a workspace

storage:
      pvcStrategy: per-workspace
      perWorkspaceStrategyPvcConfig:
        claimSize: 4Gi

ERROR: PVC is provisioned with the default size 5Gi, not 4Gi as defined in the config

Upstream issue: https://github.com/eclipse/che/issues/21748