DNM: test with custom branch

Author: MoteHue

.github/workflows/stackhpc-all-in-one.yml

@@ -100,7 +100,7 @@ jobs:
       # NOTE(upgrade): Reference the PREVIOUS release here.
       PREVIOUS_KAYOBE_IMAGE: ghcr.io/stackhpc/stackhpc-kayobe-config:stackhpc-2024.1
       # NOTE(upgrade): Reference the PREVIOUS release branch here.
-      PREVIOUS_BRANCH: stackhpc/2024.1
+      PREVIOUS_BRANCH: caracal-rabbitmq-queue-migration
     steps:
       - name: Install Package
         uses: ConorMacBride/install-package@main