main reason was tox crashing: https://github.com/tox-dev/tox/issues/2829 cython 0.29.34 for py312 support.
@@ -2,12 +2,13 @@ setuptools==67.3.3
setuptools-scm==7.1.0
pip==23.0.1
wheel==0.40.0
-virtualenv==20.19.0
+virtualenv==20.23.0
pkgconfig==1.5.5
-tox==4.0.19
-pytest==7.2.1
-pytest-xdist==3.2.0
+tox==4.5.1
+pytest==7.3.1
+pytest-xdist==3.3.0
pytest-cov==4.0.0
pytest-benchmark==4.0.0
-Cython==0.29.33
+Cython==0.29.34
twine==4.0.2
+pre-commit==3.3.1