Distinct TestPyPI and PyPI deploy jobs (#5)

Failure on TestPyPI impacted the run of the PyPI job.

.github/workflows/ci.yaml

@@ -31,11 +31,10 @@ jobs:
 
 # https://packaging.python.org/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/
   build-publish:
-    name: Build and publish Python distributions to TestPyPI and PyPI
+    name: Publish Python distributions to TestPyPI
     runs-on: ubuntu-latest
     needs: run-tests  # only run when tests where successful
-    continue-on-error: true
-    if: github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags')
+    if: github.ref == 'refs/heads/master'
 
     steps:
       - uses: actions/checkout@v2
@@ -49,13 +48,31 @@ jobs:
       - name: Build a binary wheel and a source tarball
         run: |
           python -m build --sdist --wheel  --outdir dist/ .
-      - name: Publish distribution 📦 to Test PyPI
+      - name: Publish distribution to TestPyPI
         uses: pypa/[email protected]
         with:
           password: ${{ secrets.TEST_PYPI_API_TOKEN }}
           repository_url: https://test.pypi.org/legacy/
-      - name: Publish distribution 📦 to PyPI
-        if: startsWith(github.ref, 'refs/tags')
+
+  build-publish-tags:
+    name: Publish Python distributions to PyPI
+    runs-on: ubuntu-latest
+    needs: run-tests  # only run when tests where successful
+    if: startsWith(github.ref, 'refs/tags')
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+      - name: Install pypa/build
+        run: |
+          python -m pip install build --user
+      - name: Build a binary wheel and a source tarball
+        run: |
+          python -m build --sdist --wheel  --outdir dist/ .
+      - name: Publish distribution to PyPI
         uses: pypa/[email protected]
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}