Upgrade to CUDA 12.9 + linux_aarch64

[regro-cf-autotick-bot]

This PR has been triggered in an effort to update cuda129.

Notes and instructions for merging this PR:

1. Please merge the PR only after the tests have passed.
2. Feel free to push to the bot's branch to update this PR if needed.

Please note that if you close this PR we presume that the feedstock has been rebuilt, so if you are going to perform the rebuild yourself don't close this PR until the your rebuild has been merged.

---

Here are some more details about this specific migrator:

CUDA 12.8 added support for architectures sm_100, sm_101 and sm_120,
while CUDA 12.9 further added sm_103 and sm_121. To build for these,
maintainers will need to modify their existing list of specified architectures
(e.g. CMAKE_CUDA_ARCHITECTURES, TORCH_CUDA_ARCH_LIST, etc.)
for their package. A good balance between broad support and storage
footprint (resp. compilation time) is to add sm_100 and sm_120.

Since CUDA 12.8, the conda-forge nvcc package now sets CUDAARCHS and
TORCH_CUDA_ARCH_LIST in its activation script to a string containing all
of the supported real architectures plus the virtual architecture of the
latest. Recipes for packages who use these variables to control their build
but do not want to build for all supported architectures will need to override
these variables in their build script.

ref: https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html#new-features

---

If this PR was opened in error or needs to be updated please add the bot-rerun label to this PR. The bot will close this PR and schedule another one. If you do not have permissions to add this label, you can use the phrase @conda-forge-admin, please rerun bot in a PR comment to have the conda-forge-admin add it for you.

_{This PR was created by the regro-cf-autotick-bot. The regro-cf-autotick-bot is a service to automatically track the dependency graph, migrate packages, and propose package version updates for conda-forge. Feel free to drop us a line if there are any issues! This PR was generated by https://github.com/regro/cf-scripts/actions/runs/17384134486 - please use this URL for debugging.}

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/recipe.yaml) and found it was in an excellent condition.

[weiji14]

@conda-forge-admin please rerender

[weiji14]

Getting this error on the linux_aarch64_cuda_compiler_version12.9python3.13.____cp313 build at https://dev.azure.com/conda-forge/feedstock-builds/_build/results?buildId=1344215&view=logs&j=010ccbe2-65a2-511e-4dd5-d2897d667254&t=3d41061b-a8e0-55f5-d2d5-8db24526eb86&l=1057

 Traceback (most recent call last):
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
     main()
     ~~~~^^
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
     json_out["return_val"] = hook(**hook_input["kwargs"])
                              ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 175, in prepare_metadata_for_build_wheel
     return hook(metadata_directory, config_settings)
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/setuptools/build_meta.py", line 374, in prepare_metadata_for_build_wheel
     self.run_setup()
     ~~~~~~~~~~~~~~^^
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/setuptools/build_meta.py", line 317, in run_setup
     exec(code, locals())
     ~~~~^^^^^^^^^^^^^^^^
   File "<string>", line 19, in <module>
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/torch/__init__.py", line 408, in <module>
     _load_global_deps()
     ~~~~~~~~~~~~~~~~~^^
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/torch/__init__.py", line 364, in _load_global_deps
     raise err
   File "$BUILD_PREFIX/venv/lib/python3.13/site-packages/torch/__init__.py", line 312, in _load_global_deps
     ctypes.CDLL(global_deps_lib_path, mode=ctypes.RTLD_GLOBAL)
     ~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "$BUILD_PREFIX/lib/python3.13/ctypes/__init__.py", line 390, in __init__
     self._handle = _dlopen(self._name, mode)
                    ~~~~~~~^^^^^^^^^^^^^^^^^^
 OSError: $BUILD_PREFIX/venv/lib/python3.13/site-packages/torch/lib/libtorch_global_deps.so: cannot open shared object file: No such file or directory
 error: subprocess-exited-with-error

Need to figure out how to get aarch64 to build on cross-compile mode somehow.

[weiji14]

Ok fixed the libtorch_global_deps.so: cannot open shared object file: No such file or directory error in commit bb020d5. Builds run fine now, just some tests failing now on linux-aarch64 due to a missing runtime dependency:

Error:   × Test failed: failed to setup test environment: Cannot solve the request
  │ because of: mamba-ssm ==2.2.5 py312h2fba0ae_2 cannot be installed because
  │ there are no viable options:
  │ └─ mamba-ssm 2.2.5 would require
  │    └─ causal-conv1d >=1.5.2, for which no candidates were found.
  │ The following packages are incompatible
  │ └─ mamba-ssm ==2.2.5 py312h2fba0ae_2 cannot be installed because there are
  │ no viable options:
  │    └─ mamba-ssm 2.2.5 is excluded because due to strict channel priority
  │ not using this option from: 'file:///home/conda/feedstock_root/
  │ build_artifacts/'

wait for conda-forge/causal-conv1d-feedstock#11, or could add a conditional to remove causal-conv1d as a runtime dependency on linux-aarch64 since it is optional.

[weiji14]

@conda-forge-admin, please restart ci