Update PyTorch Sphinx theme to a newer commit

[svekars]

Fixes links in the top nav bar.

cc @sekyondaMeta @AlannaBurke

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/3587

• 📄 Preview Python docs built from this PR

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

❌ 15 New Failures

As of commit d519b0e with merge base 60be370 ():

NEW FAILURES - The following jobs have failed:

• Build tutorials / pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
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• Build tutorials / pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
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• Build tutorials / pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.
• Build tutorials / pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu) (gh)
  Process completed with exit code 1.

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