Move building a release and uploading to PyPI to GitHub actions

https://packaging.python.org/en/latest/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/

.github/workflows/build.yml

@@ -0,0 +1,33 @@
+name: Build distribution files
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  test:
+    name: Build distribution files
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+
+      - name: Install dependencies
+        run: pip install --user build setuptools twine wheel
+
+      - name: Build package
+        run: python -m build
+
+      - name: Verify package
+        run: twine check --strict dist/*
+
+      - name: Upload package to GitHub
+        uses: actions/upload-artifact@v3
+        with:
+          name: dist
+          path: dist/
+          if-no-files-found: error

.github/workflows/release.yml

@@ -0,0 +1,26 @@
+name: Upload release to PyPI
+on:
+  workflow_run:
+    workflows: [Build distribution files]
+    types: [completed]
+
+jobs:
+  on-success:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    runs-on: ubuntu-latest
+    environment:
+      name: Publish to PyPI
+      url: https://pypi.org/p/django-auth-ldap
+    permissions:
+      id-token: write
+    steps:
+      - name: Retrieve artifacts
+        uses: actions/download-artifact@v3
+        with:
+          name: dist
+          path: dist/
+
+      - name: Publish distribution to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          password: ${{ secrets.PYPI_API_TOKEN }}

tox.ini

@@ -41,14 +41,3 @@ deps =
 commands =
     make -C docs html
 allowlist_externals = make
-
-[testenv:packaging]
-deps =
-    build
-    setuptools
-    twine
-    wheel
-skip_install = true
-commands =
-    python -m build
-    twine check --strict dist/*