Merge branch 'master' of github.com:ICAMS/calphy

Author: srmnitc

.github/workflows/testing.yml

@@ -58,7 +58,8 @@ jobs:
         --wheel
         --outdir dist/
         .
-    - name: Publish distribution to Test PyPI
+    - name: Publish distribution 📦 to PyPI
+      if: startsWith(github.ref, 'refs/tags')
       uses: pypa/gh-action-pypi-publish@master
       with:
         password: ${{ secrets.PYPI_API_TOKEN }}