Fix setuptools package discovery issues by using custom discovery.

```
/usr/lib/python3.12/site-packages/setuptools/command/build_py.py:212: _Warning: Package 'WoeUSB.data' is absent from the `packages` configuration.
 ```

There's an open PR to improve the packaging methods.
https://github.com/WoeUSB/WoeUSB-ng/pull/79
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ import os
 import shutil
 import stat
 
-from setuptools import setup
+from setuptools import setup, find_namespace_packages
 from setuptools.command.develop import develop
 from setuptools.command.install import install
 
@@ -57,7 +57,7 @@ setup(
     author_email='jakubmateusz@poczta.onet.pl',
     license='GPL-3',
     zip_safe=False,
-    packages=['WoeUSB'],
+    packages=find_namespace_packages(exclude=['doc', 'miscellaneous']),
     include_package_data=True,
     scripts=[
         'WoeUSB/woeusb',