File setup.py of Package failed_python-guessit

```python
from setuptools import setup, find_packages

setup(
    name='guessit',
    version='3.8.0',
    description='A library for guessing information from video filenames',
    long_description=open('README.md').read(),
    long_description_content_type='text/markdown',
    author='GuessIt Team',
    author_email='guessit@example.com',
    url='https://github.com/guessit-io/guessit',
    packages=find_packages(include=['guessit', 'guessit.*']),
    include_package_data=True,
    install_requires=[
        'six',
        'babelfish',
        'python-dateutil',
        'PyYAML',
        'rebulk',
        'stevedore',
    ],
    entry_points={
        'console_scripts': [
            'guessit = guessit.__main__:main'
        ]
    },
    classifiers=[
        'Development Status :: 5 - Production/Stable',
        'Intended Audience :: Developers',
        'License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)',
        'Programming Language :: Python :: 3',
        'Programming Language :: Python :: 3.11',
        'Programming Language :: Python :: 3.12',
        'Programming Language :: Python :: 3.13',
    ],
)
```

---

### Explanation of Changes:

1. **`python-guessit.spec`**:
   - Added `BuildRequires: python3-six` to ensure the `six` module is available during the build process.
   - Added `Requires: python3-six` to ensure the `six` module is available at runtime.

2. **`setup.py`**:
   - Updated the `packages` argument to use `find_packages()` with an explicit `include` filter to ensure all submodules, including `guessit.test.config`, are included in the distribution.
   - Kept `include_package_data=True` to include non-Python files specified in `MANIFEST.in`.

These changes should resolve the build failure caused by the missing `six` module and the package discovery warnings. After applying these modifications, rebuild the package to verify the fix.