Move smoke binary builds to 3.12 (#159993)

And limit them just to stable CUDA version (as there weren't any recent instances when only one of those jobs failed to build)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/159993
Approved by: https://github.com/ngimel
ghstack dependencies: #159986, #159990

.github/scripts/generate_ci_workflows.py

@@ -155,8 +155,8 @@ LINUX_BINARY_SMOKE_WORKFLOWS = [
         package_type="manywheel",
         build_configs=generate_binary_build_matrix.generate_wheels_matrix(
             OperatingSystem.LINUX,
-            arches=["12.6", "12.8", "12.9"],
-            python_versions=["3.9"],
+            arches=["12.8"],
+            python_versions=["3.12"],
         ),
         branches="main",
     ),