update pytorch installtion to official release url (#3815)

Author: DiweiSun

dependency_version.json

@@ -4,7 +4,7 @@
     "min-version": "12.3.0"
   },
   "pytorch": {
-    "index-url": "https://download.pytorch.org/whl/test/cpu",
+    "index-url": "https://download.pytorch.org/whl/cpu",
     "version": "2.8.0+cpu"
   },
   "torchaudio": {