Move back to use stable binaries 2.7.

[AlannaBurke]

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[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/3342

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❌ 2 New Failures

As of commit c0e6b7c with merge base a5632da ():

NEW FAILURES - The following jobs have failed:

• Build tutorials / pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  RuntimeError: Failed to import transformers.models.mobilebert.modeling_mobilebert because of the following error (look up to see its traceback):
• Build tutorials / pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 2.

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