Fix CI failures by updating OSError handling in test finalizers

[Harishmcw]

This PR fixes the CI failures on Windows builds.

The Problem

• The test suite was passing on windows-2022 but failing on windows-latest because GitHub updated the latter to Windows Server 2025. On this newer image, closing an invalid file descriptor now fails silently instead of raising an OSError. Since the test strictly expected a crash via pytest.raises(OSError), the lack of an exception caused a test failure.

The Soultion

• Updated the finalizer in tests/test_soundfile.py to use a try/except block. This ensures the file is closed if still open, but allows the test to pass if the OS handles the closure silently or if the library has already disposed of the resource.