ci: Copy publish.yml from scrapyd

.github/workflows/publish.yml

@@ -1,32 +1,23 @@
-name: Publish
-on: [push]
-
+name: Publish to PyPI
+on: push
 jobs:
   publish:
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v3
-
-    - name: Set up Python 3
-      uses: actions/setup-python@v4
-      with:
-        python-version: 3
-
-    - name: Build distribution
-      run: |
-        pip install -U setuptools wheel
-        python setup.py sdist bdist_wheel
-
-    - name: Publish to TestPyPI
-      uses: pypa/gh-action-pypi-publish@release/v1
-      with:
-        password: ${{ secrets.TEST_PYPI_TOKEN }}
-        repository_url: https://test.pypi.org/legacy/
-        skip_existing: true
-
-    - name: Publish to PyPI
-      if: startsWith(github.ref, 'refs/tags')
-      uses: pypa/gh-action-pypi-publish@release/v1
-      with:
-        password: ${{ secrets.PYPI_TOKEN }}
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.8
+      - run: pip install --upgrade setuptools wheel
+      - run: python setup.py sdist bdist_wheel
+      - name: Publish to TestPyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          password: ${{ secrets.TEST_PYPI_TOKEN }}
+          repository-url: https://test.pypi.org/legacy/
+          skip-existing: true
+      - name: Publish to PyPI
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          password: ${{ secrets.PYPI_TOKEN }}