fix: refresh Automodel artifact pins

[svvarom]

Why

PR #762 changed both Automodel artifact producers, including the Python 3.13 OpenCV/decord wheel set, but WHEELS_TAG and BASE_TAG_AUTOMODEL still pointed to the older f0756dd... build. The release source therefore consumed artifacts that did not match its Dockerfiles and failed while installing the expected Python 3.13 wheel.

What

• Pin both Automodel artifact inputs to the validated full 2c1a9ef... source SHA.

Validation

• Chained GPU-wheel and Automodel build (internal access): https://github.com/NVIDIA-NeMo/Platform-Deploy/actions/runs/29840323878
  • amd64 and arm64 wheel builds passed.
  • all three wheel manifests passed.
  • chained Automodel, Unsloth, and RL builds passed.
  • Automodel smoke tests passed.
• Direct Automodel build with no wheel override or chaining (internal access): https://github.com/NVIDIA-NeMo/Platform-Deploy/actions/runs/29848601919
  • resolved the wheel artifacts at 2c1a9ef....
  • installed the Python 3.13 OpenCV wheel on amd64 and arm64.
  • Automodel smoke tests passed.
• git diff --check passed.
• Bake graph printing passed for GPU wheels, Automodel, Unsloth, and RL training.

No public runtime API changes.

[coderabbitai]

📝 Walkthrough

Walkthrough

The Docker bake configuration updates the fixed commit tag used for automodel base and wheel image references.

Changes

Docker artifact pin update

Layer / File(s)	Summary
Docker bake image pin update docker-bake.hcl	BASE_TAG_AUTOMODEL and WHEELS_TAG now use commit 2c1a9ef... instead of f0756dd....

Suggested reviewers: mckornfield, crookedstorm

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the main change: refreshing Automodel artifact pins to a newer validated SHA.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix-gpu-wheel-pins/svvarom

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_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

Suite	Lines Covered	Line Rate	Branch Rate
Unit Tests	26384/34035	77.5%	61.8%
Integration Tests	15172/32660	46.5%	18.7%

[crookedstorm]

If this fixes the build sequence, I'm all for it!