install stable torch

Author: ebsmothers

.github/workflows/build_vllm.yaml

@@ -37,7 +37,7 @@ jobs:
               "package_type": "manywheel",
               "build_name": "manywheel-py3_10-cuda12_8",
               "validation_runner": "linux.12xlarge.memory",
-              "installation": "pip3 install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cu128",
+              "installation": "pip3 install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cu128",
               "channel": "nightly",
               "upload_to_base_bucket": "no",
               "stable_version": "2.8.0",