fix: Exclude tests from package

[huonw]

The wheels include the tests, due to the find_packages exclusion being subtle: it is a full package path glob, not just a prefix/parent package exclusion. This makes the appropriate adjustment to the find_packages(exclude=...) call to ensure they're not included.

See the "Important" note in https://setuptools.pypa.io/en/latest/userguide/package_discovery.html#finding-simple-packages

curl -O https://files.pythonhosted.org/packages/a8/02/b6c6de2524add783af7be9b057baf8dc1cda62b4aa5cd8b7ea2ede500658/casbin-1.18.2-py3-none-any.whl
unzip -l casbin-1.18.2-py3-none-any.whl
#> ...
#>       637  04-06-2023 17:12   tests/benchmarks/__init__.py
#>      2882  04-06-2023 17:12   tests/benchmarks/benchmark_management_api.py
#> ...
#> ---------                     -------
#>    270392                     60 files

After this patch, the unzip -l on a built wheel includes none of the tests. The uncompressed package is only only 206607 bytes (64KB smaller, -24%) and 46 files.

[casbin-bot]

@Nekotoxin please review

[github-actions]

🎉 This PR is included in version 1.18.3 🎉

The release is available on:

• v1.18.3
• GitHub release

Your semantic-release bot 📦🚀