Update XLA pin (#102446)

Updating the pin to the same hash as  https://github.com/pytorch/pytorch/pull/100922

On the XLA side, build have switch from CMake to bazel, which requires number of changes on PyTorch side:
 - Copy installed headers back to the `torch/` folder before starting the build
 - Install `torch/csrc/lazy/python/python_utils.h`
 - Define `LD_LIBRARY_PATH`

TODO:
 - Enable bazel caching
 - Pass CXX11_ABI flag to  `//test/cpp:all`  to reuse build artifacts from  `//:_XLAC.so`

<!--
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### <samp>🤖 Generated by Copilot at cd4768b</samp>

> _To fix the XLA tests that were failing_
> _We updated the submodule and scaling_
> _We added `python_util.h`_
> _And copied `torch` as well_
> _And set `LD_LIBRARY_PATH` for linking_
Pull Request resolved: https://github.com/pytorch/pytorch/pull/102446
Approved by: https://github.com/huydhn

setup.py

@@ -1177,6 +1177,7 @@ def main():
         'include/torch/csrc/lazy/core/*.h',
         'include/torch/csrc/lazy/core/internal_ops/*.h',
         'include/torch/csrc/lazy/core/ops/*.h',
+        'include/torch/csrc/lazy/python/python_util.h',
         'include/torch/csrc/lazy/ts_backend/*.h',
         'include/pybind11/*.h',
         'include/pybind11/detail/*.h',