Test the IOQuantization pass does not have Q/DQ nodes

[gggekov]

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/7783

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❌ 2 New Failures, 1 Pending

As of commit c3d20c4 with merge base f4e77c7 ():

NEW FAILURES - The following jobs have failed:

• pull / test-phi-3-mini-runner-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 97b9c7d68b247e68f5726115aee2530e46e63d1f0b9b99df33459459b3f9070e /exec failed with exit code 2
• trunk / test-models-macos (cmake, emformer_transcribe, xnnpack-quantization-delegation, macos-m1-stable, 90) / macos-job (gh)
  RuntimeError: Missing out variants: {'quantized_decomposed::quantize_per_tensor', 'quantized_decomposed::dequantize_per_tensor'}

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[digantdesai]

LGTM, left a comment about improving checks.