Publishing is failing possibly due to timeout validating quantum_transformer.ipynb

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Describe the bug

The publishing pipeline is getting a context cancelled which is usually related to timeouts when validating the newly added quantum_transformer.ipynb in https://github.com/NVIDIA/cuda-quantum/actions/runs/13640844145/job/38132888363#step:5:1361. This notebook was recently added in https://github.com/NVIDIA/cuda-quantum/pull/2614

Steps to reproduce the bug

Run the publishing pipeline

Expected behavior

Publishing passes

Is this a regression? If it is, put the last known working version (or commit) here.

Not a regression

Environment

• CUDA-Q version: latest
• Python version:
• C++ compiler:
• Operating system:

Suggestions

No response

Start with the publishing pipeline run linked in the issue, especially the validation step that reports context cancelled, and inspect quantum_transformer.ipynb and PR 2614. Determine whether notebook validation is timing out, then verify the publishing pipeline completes successfully without weakening validation.