Target new arch override var

Author: MaxBed4d

.github/workflows/overcloud-host-image-build.yml

@@ -39,7 +39,7 @@ env:
   ANSIBLE_FORCE_COLOR: True
   KAYOBE_ENVIRONMENT: ci-builder
   KAYOBE_VAULT_PASSWORD: ${{ secrets.KAYOBE_VAULT_PASSWORD }}
-  overcloud_dib_architecture: ${{ inputs.cpu-platform-architecture == 'x86_64' && 'amd64' || 'arm64' }}
+  stackhpc_cpu_arch_override: ${{ inputs.cpu-platform-architecture == 'aarch64' && 'arm64' || inputs.cpu-platform-architecture }}
   pulp_artifact_type: ${{ inputs.cpu-platform-architecture == 'x86_64' && 'kayobe-images' || 'kayobe-images/aarch64' }}
 jobs:
   runner-selection: