Add automatic publishing to pypi

.github/workflows/publish-to-pypi.yml

@@ -0,0 +1,37 @@
+name: Publish Python distribution to PyPI
+on: 
+  push:
+    tags:
+      - '[0-9].[0-9]+.[0-9]+'
+
+jobs:
+  pypi-publish:
+    name: Build and publish Python distribution to PyPI
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/cftscal
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@main
+      - name: Setup Python 3.10
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.10"
+      - 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 distribution to PyPI
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@release/v1