Workflow update to publish to test.pypi

.github/workflows/python-package.yml

@@ -81,3 +81,28 @@ jobs:
           gh release upload
           '${{ github.ref_name }}_${{ github.sha }}' ./wheelhouse/artifact/**
           --repo '${{ github.repository }}'
+
+  publish-test:
+    # https://packaging.python.org/en/latest/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/
+    needs:
+      - release
+    runs-on: ubuntu-latest
+
+    environment:
+      name: test-pypi
+      url: https://test.pypi.org/p/mssm
+
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Download Artifacts
+        uses: actions/download-artifact@v3
+        with:
+          path: ./wheelhouse/
+
+      - name: Publish wheels to test-pypi
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          packages-dir: ./wheelhouse/artifact
+          repository-url: https://test.pypi.org/legacy/