Add deploy action in ci.yaml.

.github/workflows/ci.yaml

@@ -37,3 +37,28 @@ jobs:
         with:
           name: dist
           path: dist/*
+
+  deploy:
+    if: startsWith(github.event.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/pykoplenti
+    permissions:
+      id-token: write # IMPORTANT: this permission is mandatory for trusted publishi
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.10"
+      - name: Install dependecies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install pipenv
+          pipenv install --dev
+      - name: Build package
+        run: |
+          pipenv run build
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1