properly fix and RUN_SLOW

[ArthurZucker]

What does this PR do?

I think I am a bit tired 😅 fixes #33929 again

 RUN_SLOW=1 pytest tests/models/siglip -k test_inference_interpolate_pos_encoding                                              20s py312 22:53:02
=============================================================================== test session starts ===============================================================================
platform darwin -- Python 3.12.3, pytest-8.2.2, pluggy-1.5.0
rootdir: /Users/arthurzucker/Work/transformers
configfile: pyproject.toml
collected 606 items / 605 deselected / 1 selected                                                                                                                                 

tests/models/siglip/test_modeling_siglip.py .                                                                                                                               [100%]

================================================================================ warnings summary =================================================================================
src/transformers/deepspeed.py:24
  /Users/arthurzucker/Work/transformers/src/transformers/deepspeed.py:24: FutureWarning: transformers.deepspeed module is deprecated and will be removed in a future version. Please import deepspeed modules directly from transformers.integrations
    warnings.warn(

../../.pyenv/versions/3.12.3/envs/py312/lib/python3.12/site-packages/google/protobuf/internal/well_known_types.py:91
  /Users/arthurzucker/.pyenv/versions/3.12.3/envs/py312/lib/python3.12/site-packages/google/protobuf/internal/well_known_types.py:91: DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC).
    _EPOCH_DATETIME_NAIVE = datetime.datetime.utcfromtimestamp(0)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
================================================================== 1 passed, 605 deselected, 2 warnings in 5.02s

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