Feed terraform kaybe multinode previous version on major upgrade

Author: seunghun1ee

.github/workflows/stackhpc-multinode.yml

@@ -72,4 +72,5 @@ jobs:
       # NOTE(upgrade): Reference the PREVIOUS and CURRENT releases here.
       stackhpc_kayobe_config_previous_version: ${{ inputs.upgrade == 'major' && 'stackhpc/2024.1' || 'stackhpc/2025.1' }}
       terraform_kayobe_multinode_version: ${{ inputs.terraform_kayobe_multinode_version }}
+      terraform_kayobe_multinode_previous_version: ${{ inputs.upgrade == 'major' && 'stackhpc/2024.1' || 'main' }}
     secrets: inherit