Fix tests that failed in Python 3.13 when building the conda-forge package

[aywi]

The following tests failed in Python 3.13 when building the conda-forge package (conda-forge/torchaudio-feedstock#30):

FAILED test/torchaudio_unittest/backend/dispatcher/soundfile/info_test.py::TestInfo::test_unknown_subtype_warning - assert 2 == 1
 +  where 2 = len([<warnings.WarningMessage object at 0x1712d0cb0>, <warnings.WarningMessage object at 0x1712d0d40>])

This was caused by FutureWarning: functools.partial will be a method descriptor in future Python versions; wrap it in staticmethod() if you want to preserve the old behavior with Python 3.13 (python/cpython#121027).

FAILED test/torchaudio_unittest/datasets/cmuarctic_test.py::TestCMUARCTIC::test_cmuarctic_path - ValueError: bad delimiter value
FAILED test/torchaudio_unittest/datasets/cmuarctic_test.py::TestCMUARCTIC::test_cmuarctic_str - ValueError: bad delimiter value

These were caused by csv.reader(text, delimiter="\n") in torchaudio/datasets/cmuarctic.py, which is not allowed with Python 3.13 (python/cpython#113796).

Additionally, there were some TypeError: LRScheduler.__init__() got an unexpected keyword argument 'verbose' in local tests, caused by the final deprecation of the verbose kwarg to the LRScheduler constructor with PyTorch 2.7 (pytorch/pytorch#147301) (has been deprecated since 2.2).

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/audio/3923

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[aywi]

@NicolasHug @samanklesaria Please help take a look since there has been no response from the original code owners. Thanks!