Add PyPI publish workflow

Author: manojmw

.github/workflows/publish.yml

@@ -0,0 +1,23 @@
+name: Publish to PyPI (tags)
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: read
+  id-token: write   # required for Trusted Publishing (no API token)
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+      - run: pip install build
+      - run: python -m build
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1