Fix model cuda tests

[sayakpaul]

What does this PR do?

Fixes https://github.com/huggingface/diffusers/actions/runs/27669750354/job/81831440018?pr=13974

[HuggingFaceDocBuilderDev]

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[sayakpaul]

/diffusers-bot pytest tests/models/autoencoders/test_models_autoencoder_kl_temporal_decoder.py

[github-actions]

✅ pytest tests/models/autoencoders/test_models_autoencoder_kl_temporal_decoder.py passed on GPU — view logs.

[github-actions]

Hi @sayakpaul, thanks for the PR! It does not appear to link an issue it fixes. If this PR addresses an existing issue, please add a closing keyword (e.g. Fixes #1234) to the PR description so the issue is linked. See the contribution guide for more details. If this PR intentionally does not fix a tracked issue, a maintainer can add the no-issue-needed label to silence this reminder.

[sayakpaul]

/diffusers-bot pytest ttests/models/transformers/test_models_transformer_z_image.py

[github-actions]

❌ pytest ttests/models/transformers/test_models_transformer_z_image.py failed on GPU — view logs.

[sayakpaul]

/diffusers-bot pytest tests/models/transformers/test_models_transformer_z_image.py

[github-actions]

❌ pytest tests/models/transformers/test_models_transformer_z_image.py failed on GPU — view logs.

[sayakpaul]

Fialing test also fails on main. Cc: @DN6