Configure GitHub to automate publishing DAG Factory in PyPI (#255)

Automate the release process using GitHub actions so we can consistently
make release 0.20.0 and future releases.

As part of this change, I've already generated a PyPI upload token and
configured the environment variable `PYPI_TOKEN` as a GitHub secret.

.github/workflows/release.yml

@@ -0,0 +1,20 @@
+  Publish-Package:
+    if: github.event_name == 'release'
+    name: Build and publish Python 🐍 distributions 📦 to PyPI
+    needs:
+      - Static-Check
+      - Run-Unit-Tests
+      - Code-Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+          architecture: 'x64'
+      - run: pip3 install hatch
+      - run: hatch build
+      - run: hatch publish
+    env:
+      HATCH_INDEX_USER: __token__
+      HATCH_INDEX_AUTH: ${{ secrets.PYPI_TOKEN }}

pyproject.toml

@@ -82,12 +82,18 @@ Source = "https://github.com/astronomer/dag-factory"
 [tool.hatch.version]
 path = "dagfactory/__init__.py"
 
+[tool.hatch.build]
+sources = ["."]
+
 [tool.hatch.build.targets.sdist]
 include = ["dagfactory"]
 
 [tool.hatch.build.targets.wheel]
 packages = ["dagfactory"]
 
+[tool.distutils.bdist_wheel]
+universal = true
+
 [tool.pytest.ini_options]
 filterwarnings = ["ignore::DeprecationWarning"]
 minversion = "6.0"