fix(automatic-release): pass ENV variables (#540)

Author: shortcuts

tox.ini

@@ -74,4 +74,4 @@ passenv =
 commands =
     python setup.py sdist bdist_wheel
     twine check dist/*
-    twine upload --username $PYPI_USER --password $PYPI_PASSWORD dist/*
+    twine upload -u {env:PYPI_USER} -p {env:PYPI_PASSWORD} --repository-url https://upload.pypi.org/legacy/ dist/*