Create a macos-arm64 preset

[jathu]

Summary

• Create the base for a macos-arm64 preset — bigger migration in future diffs
• Create an Apple CI job to test builds

Test plan

CI +

$ cmake --preset macos-arm64

-- Loading build preset: /Users/jathu/executorch/tools/cmake/preset/macos-arm64.cmake
-- --- Configurated Options ---

-- EXECUTORCH_BUILD_PRESET_FILE : /Users/jathu/executorch/tools/cmake/preset/macos-arm64.cmake
-- EXECUTORCH_ENABLE_LOGGING    : ON
-- EXECUTORCH_BUILD_COREML      : ON
-- ---------------------------

$ cmake --build cmake-out --parallel

cc @larryliu0820

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/10768

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 3 New Failures, 3 Pending

As of commit a41a32b with merge base 380c4f1 ():

NEW FAILURES - The following jobs have failed:

• Apple / upload-frameworks-ios (gh)
  Error message: Cannot read properties of undefined (reading 'message')
• trunk / test-llama-torchao-lowbit / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 1
• trunk / test-models-macos (emformer_join, xnnpack-quantization-delegation) / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 1

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[swolchok]

why are we using the iOS toolchain on macOS?

[swolchok]

#12578