Add CI job to publish to PyPI

.gitlab-ci.yml

@@ -24,3 +24,14 @@ test:
     paths:
       - dist/*.tar.gz
       - wheelhouse/*
+
+publish-job:
+  stage: deploy
+  rules:
+    - if: $CI_COMMIT_TAG
+  dependencies:
+    - test
+  script:
+    - python -m pip install -U twine
+
+    - twine upload -u __token__ -p "$PYPI_TOKEN" dist/*.tar.gz wheelhouse/*