Add publish to PyPI workflow

.github/workflows/publish.yml

@@ -0,0 +1,34 @@
+name: Publish release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/coh2-live-stats
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: create virtual environment
+        run: |
+          python -m venv --without-pip .venv
+          python -m venv --upgrade-deps --upgrade .venv
+      - name: activate virtual environment
+        run: python -c "from scripts.github_actions.activate import run; run()"
+      - name: install dependencies
+        run: python -m pip install build twine
+      - name: build package
+        run: python -m build
+      - name: check package
+        run: python -m twine check dist/*
+      - name: publish package
+        uses: pypa/gh-action-pypi-publish@release/v1