Add GitHub action to publish to PyPI on tagging a release

Signed-off-by: Thomas Druez <tdruez@nexb.com>

Author: tdruez

.github/workflows/pypi-release.yml

@@ -0,0 +1,32 @@
+name: Build Python distributions and publish on PyPI
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  build-and-publish:
+    name: Build and publish library to PyPI
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.11
+
+      - 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 to PyPI
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          password: ${{ secrets.PYPI_API_TOKEN }}