fix(testing): Fix Parakeet, Evolla, Pi0, and Phi-3 test failures on main CI

[harshaljanjani]

What does this PR do?

The following failing tests were identified and fixed in this PR (grouped them together since they share related root causes OR the code changes were extremely minimal and didn't warrant separate PRs):

→ Phi-3: I made a similar fix for LongCat-Flash in another PR, but it's essentially the same pattern. The PR [V5] Return a BatchEncoding dict from apply_chat_template by default again changed apply_chat_template to return a BatchEncoding dict instead of a tensor. The test was passing this dict directly to model.generate and then accessing .shape; this fixes that.
→ Pi0 / Parakeet / Evolla: test_sdpa_can_dispatch_on_flash forces only the Flash kernel, which rejects any non-null attention mask. Pi0 wraps PaliGemma which creates a causal mask mapping even when attention_mask=None (PaliGemma is already skipped for the very reason, so Pi0 should follow suit); Parakeet always passes a relative-position bias as attention_mask, so the mask is never None even when the test removes it; and Evolla's protein encoder generates an attention mask internally when none is provided, which then reaches SDPA as a non-null mask. Added the missing three to the skip list.

cc: @Rocketknight1

CI Failures

Before the fixes (feel free to cross-check; these errors are reproducible):

After the fixes (feel free to cross-check):

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[Rocketknight1]

Overall looks good, with one comment!

[harshaljanjani]

P.S. @Rocketknight1 thanks for all the reviews over the past months! I've absolutely loved working on Transformers. Please do let me know if you're open to connecting outside of GH (no stress if not!). Looking forward to future PRs and hoping that the model I've been heads-down on gets its final core review soon lol :)

[HuggingFaceDocBuilderDev]

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[ydshieh]

Hi @harshaljanjani Thank you. I will also take a look too.

BTW, it would be nice to give the (full) test names that fails, like tests/models/phi3 .... as text too, which we could copy paste. And also good to attach the error log of the failing tests as text.

[ydshieh]

Also good from my side, thanks again!

I will update some updates on expected output values, so we have more tests fixed.

[ydshieh]

run-slow: phi3

[github-actions]

Workflow Run ⚙️

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

models: ["models/phi3"]
quantizations: []

[harshaljanjani]

Good day @ydshieh, thanks for your time! I'll keep that in mind for future PRs. I usually attach screenshots from local runs, but that makes sense, I'll include the text along with them in forthcoming PRs :)
Just a gentle note in regard to the tests that there's a removed: possibly flaky (?) AssertionError that comes up in the test tests/models/phi3/test_modeling_phi3.py::Phi3IntegrationTest::test_phi3_mini_4k_instruct_generation which I didn't resolve with this PR, but the AttributeError it was crashing with before should now be resolved!

[ydshieh]

it's probably not flaky, but just we have different environment (hardware etc.) :-)

[github-actions]

CI Results

Workflow Run ⚙️

Commit Info

Context	Commit	Description
RUN	69aa42c9	workflow commit (merge commit)
PR	bac66bf4	branch commit (from PR)
main	689f52ce	base commit (on main)

Model CI Report

❌ 1 new failed tests from this PR 😭

• phi3:
  tests/models/phi3/test_modeling_phi3.py::Phi3IntegrationTest::test_phi3_mini_4k_instruct_generation (❌ ⟹ ❌)

[github-actions]

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

run-slow: phi3

[ydshieh]

Only one

FAILED tests/models/phi3/test_modeling_phi3.py::Phi3IntegrationTest::test_export_static_cache - torch._dynamo.exc.Unsupported: Data-dependent branching

but it's already failing on main, not the scope of this PR.