CI: Fix previous version in multinode.yml for Caracal

Author: markgoddard

.github/workflows/stackhpc-multinode.yml

@@ -66,6 +66,6 @@ jobs:
       ssh_key: ${{ inputs.ssh_key }}
       stackhpc_kayobe_config_version: ${{ github.ref_name }}
       # NOTE(upgrade): Reference the PREVIOUS release here.
-      stackhpc_kayobe_config_previous_version: stackhpc/zed
+      stackhpc_kayobe_config_previous_version: stackhpc/2023.1
       terraform_kayobe_multinode_version: ${{ inputs.terraform_kayobe_multinode_version }}
     secrets: inherit