Added PyPi release workflow (#10)

The workflow trigger is whenever a new release
is published in GitHub.
The package used for publishing to PyPi is twine
PyPi_API_KEY is added to GitHub Secrets
Twine will use that to publish the built code.

Co-authored-by: Rares Gaia <[email protected]>

.github/workflows/pypi_release.yml

@@ -0,0 +1,32 @@
+name: Publish to PyPi
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out the code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: Install build dependencies
+        run: pip install build
+
+      - name: Build the package
+        run: python -m build
+
+      - name: Publish to PyPI
+        env:
+          TWINE_API_KEY: ${{ secrets.PYPI_API_KEY }}
+        run: |
+          pip install twine
+          twine upload --skip-existing dist/*
+