Add publish.yml workflow to publish to pypi

.github/workflows/publish.yml

@@ -0,0 +1,35 @@
+name: publish
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v3
+      - name: setup-python
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.11"
+          architecture: "x64"
+      - name: install pypa/build
+        run: >-
+          python -m
+          pip install
+          build
+          --user
+      - name: build sdist(tarball) and bdist(wheel) to dist/
+        run: >- # = python -m build . works the same way by default
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+      - name: publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://upload.pypi.org/legacy/