Make alternative publish workflow proper

.github/workflows/publish.yaml

@@ -1,31 +1,44 @@
-name: Publish ixmp4
+# copied from https://github.com/marketplace/actions/install-poetry-action
+name: publish
+
 on:
   push:
     tags: ["v*"]
   release:
     types: ["published"]
-  workflow_dispatch:
+
 jobs:
-  build:
+  publish:
     runs-on: ubuntu-latest
     steps:
-      - run: sudo apt-get install python-dev
-      - uses: actions/checkout@v3
-      # publish to pypi
-      - if: github.event_name == 'release'
-        name: Build and publish to pypi
-        uses: JRubics/[email protected]
+      #----------------------------------------------
+      #       check-out repo and set-up python
+      #----------------------------------------------
+      - name: Check out repository
+        uses: actions/checkout@v3
+      - name: Set up python
+        id: setup-python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      #----------------------------------------------
+      #  -----  install & configure poetry  -----
+      #----------------------------------------------
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
         with:
-          pypi_token: ${{ secrets.PYPI_TOKEN }}
-          plugins: "poetry-dynamic-versioning[plugin]"
-          python_version: "3.10"
-      # publish to testpypi
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+      - name: Install poetry dynamic versioning plugin
+        run: poetry self add "poetry-dynamic-versioning[plugin]"
+      - name: Build package
+        run: poetry build
+      - if: github.event_name == 'release'
+        name: Publish distribution to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
       - if: github.event_name != 'release'
-        name: Build and publish to testpypi
-        uses: JRubics/poetry-publish@v1.16
+        name: Publish distribution to Test PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
-          python_version: "3.10"
-          repository_name: "testpypi"
-          repository_url: "https://test.pypi.org/legacy/"
-          pypi_token: ${{ secrets.TESTPYPI_TOKEN }}
-          plugins: "poetry-dynamic-versioning[plugin]"
+          repository-url: https://test.pypi.org/legacy/