ci(distribution): fix acceptance runner temp path

Plan: .omo/plans/baota-ai-ops-control-plane.md

Author: cat9999aaa

.github/workflows/docker-compose-acceptance.yml

@@ -16,7 +16,7 @@ jobs:
     timeout-minutes: 25
     env:
       COMPOSE_PROJECT_NAME: siteops-acceptance-${{ github.run_id }}
-      ACCEPTANCE_DIR: ${{ runner.temp }}/siteops-acceptance
+      ACCEPTANCE_DIR: /tmp/siteops-acceptance-${{ github.run_id }}
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4