Add GitHub Actions workflow to publish to PyPI on tag

.github/workflows/publish.yml

@@ -0,0 +1,55 @@
+name: Publish to PyPI
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    name: Build distribution
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Verify tag matches package version
+        run: |
+          version="$(python setup.py --version)"
+          tag="${GITHUB_REF_NAME#v}"
+          if [ "$version" != "$tag" ]; then
+            echo "Tag $tag does not match package version $version" >&2
+            exit 1
+          fi
+      - name: Build sdist and wheel
+        run: |
+          python -m pip install --upgrade pip build
+          python -m build
+      - name: Upload distribution artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+  publish:
+    name: Publish to PyPI
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/project/python-dali/
+    permissions:
+      id-token: write
+    steps:
+      - name: Download distribution artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1