[CI] Test that NumPy-2.X builds are backward compatible with 1.X (#12…

…3354)

By compiling PyTorch against 2.x RC, but running all the tests with Numpy-1.X

This has no affects on binary builds
Pull Request resolved: #122157
Approved by: https://github.com/atalman

(cherry picked from commit 03b987f)

Co-authored-by: Nikita Shulga <2453524+malfet@users.noreply.github.com>

.ci/pytorch/build.sh

@@ -255,6 +255,11 @@ else
     # or building non-XLA tests.
     if [[ "$BUILD_ENVIRONMENT" != *rocm*  &&
           "$BUILD_ENVIRONMENT" != *xla* ]]; then
+      if [[ "$BUILD_ENVIRONMENT" != *py3.8* ]]; then
+        # Install numpy-2.0 release candidate for builds
+        # Which should be backward compatible with Numpy-1.X
+        python -mpip install --pre numpy==2.0.0b1
+      fi
       WERROR=1 python setup.py bdist_wheel
     else
       python setup.py bdist_wheel