Fix: Remove redundant @can_return_tuple conflicting with @capture_out…

[guarin]

What does this PR do?

Fixes all forward calls that combine @can_return_tuple with @capture_outputs. The two are not compatible because they both pop return_dict from the kwargs which results in only the outermost decorator seeing the true value. @can_return_tuple is redundant in this case because @capture_outputs already handles tuples.

This PR comes a new mlinter rule that checks for this issue: huggingface/transformers-mlinter#14

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@vasqu @molbap

[guarin]

run-slow: lasr, llama4, mllama, nemotron_asr_streaming, parakeet, pe_audio, pe_audio_video, pe_video

[github-actions]

Workflow Run ⚙️

This comment contains run-slow, running the specified jobs:

models: ["models/lasr", "models/llama4", "models/mllama", "models/nemotron_asr_streaming", "models/parakeet", "models/pe_audio", "models/pe_audio_video", "models/pe_video"]
quantizations: []

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[github-actions]

CI Results

Workflow Run ⚙️

Commit Info

Context	Commit	Description
RUN	af8df988	workflow commit (merge commit)
PR	3761318a	branch commit (from PR)
main	b317ff31	base commit (on main)

✅ No failing test specific to this PR 🎉 👏 !

[vasqu]

Yep thanks!

[github-actions]

[For maintainers] Suggested jobs to run (before merge)

run-slow: lasr, llama4, mllama, nemotron_asr_streaming, parakeet, pe_audio, pe_audio_video, pe_video

[github-actions]

---

CI recap

Dashboard: View test results in Grafana
Latest run: 30829894960:1
Result: success | Jobs: 5 | Tests: 1,308 | Failures: 0 | Duration: 8m 23s