Arm backend: Enable pytest VKML op unit testing in ciflow/trunk

[mansnils]

Enable VKML op unit test for Arm backend.

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/14109

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❗ 1 Active SEVs

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• Long queue for ROCM runners, also B200 and XPU queueing is observed

❌ 3 New Failures, 10 Cancelled Jobs, 1 Unrelated Failure

As of commit f6d7dd7 with merge base 6abe901 ():

NEW FAILURES - The following jobs have failed:

• pull / test-models-linux-basic (mv3, xnnpack-quantization-delegation, cmake, linux.arm64.2xlarge, execut... / linux-job (gh)
  Process completed with exit code 253.
• trunk / test-models-macos-cpu (efficient_sam, portable) / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 1
• trunk / unittest-release / macos / macos-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_all_models_with_recipes

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• trunk / test-arm-backend (test_memory_allocation) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_model_smollm2-135M) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_models_ethos-u55) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_models_ethos-u85) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_models_tosa) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_pytest_models_ethosu_fvp) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_pytest_ops_ethosu_fvp) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_pytest_ops_vkml) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_run_ethosu_fvp) / linux-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-backend (test_smaller_stories_llama) / linux-job (gh)
  ##[error]The operation was canceled.

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• trunk / unittest-release / linux / linux-job (gh) (trunk failure)
  [ FAILED ] WavLoaderTest.LoadAudioDataRejectsUnsupportedFormat

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[zingo]

Ouch, all jobs timedout installing/building the deps :(
Until we get precompiled deps this might need to be pre-build in the docker.
Maybe the Vulkan backend already have a solution to copy/clone?