try to run slow ci on new cluster

.github/workflows/self-pr-slow-ci.yml

@@ -65,8 +65,9 @@ jobs:
         fail-fast: false
         matrix:
           folders: ${{ fromJson(needs.find_models_to_run.outputs.models) }}
-          machine_type: [single-gpu, multi-gpu]
-      runs-on: ['${{ matrix.machine_type }}', nvidia-gpu, t4, ci]
+          machine_type: [aws-g4dn-2xlarge-cache, aws-g4dn-12xlarge-cache]
+      runs-on:
+        group: '${{ matrix.machine_type }}'
       container:
         image: huggingface/transformers-all-latest-gpu
         options: --gpus all --shm-size "16gb" --ipc host -v /mnt/cache/.cache/huggingface:/mnt/cache/