Remove redundant runtime requirement on setuptools

The dependency was dropped in 99a1cf3

Add a build time dependency for setup.py build_ext on Python 3.12+
which no longer contains distutils.

Signed-off-by: Miro Hrončok <miro@hroncok.cz>

Author: hroncok

pyproject.toml

@@ -39,7 +39,7 @@ classifiers = ["Development Status :: 5 - Production/Stable",
 
 requires-python=">=3.10"
 # also requires libsepol.so and libselinux.so.
-dependencies = ["setuptools"]
+dependencies = []
 
 optional-dependencies.analysis = ["networkx>=2.6",
                                   "pygraphviz"]

tox.ini

@@ -56,5 +56,6 @@ deps            = networkx>=2.6
                   pygraphviz
                   pytest-qt
                   pytest-xvfb
+                  setuptools;python_version>"3.11"
 commands_pre    = {envpython} setup.py build_ext -i
 commands        = {envpython} -m pytest tests