Use test branch, run tempest

.github/workflows/stackhpc-multinode.yml

@@ -29,6 +29,10 @@ name: Multinode
         description: Whether to perform an upgrade
         type: boolean
         default: false
+      tempest:
+        description: Whether to perform tempest testing
+        type: boolean
+        default: false
       break_on:
         description: When to break execution for manual interaction
         type: choice
@@ -52,14 +56,15 @@ name: Multinode
 jobs:
   multinode:
     name: Multinode
-    uses: stackhpc/stackhpc-openstack-gh-workflows/.github/workflows/multinode.yml@break-condition
+    uses: stackhpc/stackhpc-openstack-gh-workflows/.github/workflows/multinode.yml@alex-test-branch
     with:
       multinode_name: ${{ inputs.multinode_name }}
       os_distribution: ${{ inputs.os_distribution }}
       os_release: ${{ inputs.os_distribution == 'rocky' && '9' || 'jammy' }}
       ssh_username: ${{ inputs.os_distribution == 'rocky' && 'cloud-user' || 'ubuntu' }}
       neutron_plugin: ${{ inputs.neutron_plugin }}
       upgrade: ${{ inputs.upgrade }}
+      tempest: ${{ inputs.tempest }}
       break_on: ${{ inputs.break_on }}
       # Workaround loss of number type using fromJSON: https://github.com/orgs/community/discussions/67182
       break_duration: ${{ fromJSON(inputs.break_duration) }}