[Bugfix] Fix test_eagle test

[luccafong]

V1 test failed in trunk:

Fix test for pytest -v tests/v1/spec_decode/test_eagle.py
Before changes, we got below for test_load_model

    def get_pp_group() -> GroupCoordinator:
>       assert _PP is not None, (
            "pipeline model parallel group is not initialized")
E       AssertionError: pipeline model parallel group is not initialized

Now:

ests/v1/spec_decode/test_eagle.py::test_prepare_inputs PASSED                                                                                   [ 16%]
tests/v1/spec_decode/test_eagle.py::test_load_model[eagle-<lambda>-yuhuili/EAGLE-LLaMA3.1-Instruct-8B-target_attribute_path0] PASSED             [ 33%]
tests/v1/spec_decode/test_eagle.py::test_load_model[eagle3-<lambda>-yuhuili/EAGLE3-LLaMA3.1-Instruct-8B-target_attribute_path1] PASSED           [ 50%]
tests/v1/spec_decode/test_eagle.py::test_propose[1] PASSED                                                                                       [ 66%]
tests/v1/spec_decode/test_eagle.py::test_propose[3] PASSED                                                                                       [ 83%]
tests/v1/spec_decode/test_eagle.py::test_propose[8] PASSED                                                                                       [100%]

=================================================================== warnings summary ===================================================================
<frozen importlib._bootstrap>:488
  <frozen importlib._bootstrap>:488: DeprecationWarning: Type google._upb._message.MessageMapContainer uses PyType_Spec with a metaclass that has custom tp_new. This is deprecated and will no longer be allowed in Python 3.14.

<frozen importlib._bootstrap>:488
  <frozen importlib._bootstrap>:488: DeprecationWarning: Type google._upb._message.ScalarMapContainer uses PyType_Spec with a metaclass that has custom tp_new. This is deprecated and will no longer be allowed in Python 3.14.

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
============================================================ 6 passed, 2 warnings in 16.97s ============================================================

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[zixi-qi]

Do we also need to cover eagle3?

[luccafong]

else fall into eagle3, algin with logic in 177 to 184

[zixi-qi]

LGTM!