Publish the python library to TestPyPI and PyPI

- Github "Trusted Publisher" must be configured on TestPyPI & PyPI
- publish to PyPI only if github.ref is a tag

Author: Thierry RAMORASOAVINA

.github/workflows/publish.yml

@@ -0,0 +1,74 @@
+---
+name: Publish
+on:
+  pull_request:  # automatic publication while developing the "publish" workflow
+    paths: [.github/workflows/publish.yml]
+  workflow_dispatch:  # manual triggering (when the workflow is in the default branch)
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+jobs:
+  build:
+    name: Build distribution 📦
+    runs-on: ubuntu-22.04
+    steps:
+      # not explict branch specified so this step should check out the github.ref branch or tag
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          # Get Git tags so that versioneer can function correctly
+          # See issue https://github.com/actions/checkout/issues/701
+          fetch-depth: 0
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - name: Install pypa/build
+        run: >-
+          python3 -m pip install build --user
+      - name: Build a binary wheel and a source tarball
+        run: python3 -m build
+      - name: Store the distribution packages
+        uses: actions/upload-artifact@v4
+        with:
+          name: python-package-distributions
+          path: dist/
+  publish-to-testpypi:
+    name: Publish Python 🐍 distribution 📦 to TestPyPI
+    needs: [build]
+    runs-on: ubuntu-22.04
+    environment:
+      name: testpypi
+      url: https://test.pypi.org/p/khiops
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+    steps:
+      - name: Download all the dists
+        uses: actions/download-artifact@v4
+        with:
+          name: python-package-distributions
+          path: dist/
+      - name: Publish distribution 📦 to TestPyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
+  publish-to-pypi:
+    name: >-
+      Publish Python 🐍 distribution 📦 to PyPI
+    if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
+    needs: [build]
+    runs-on: ubuntu-22.04
+    environment:
+      name: pypi
+      url: https://pypi.org/p/khiops
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+    steps:
+      - name: Download all the dists
+        uses: actions/download-artifact@v4
+        with:
+          name: python-package-distributions
+          path: dist/
+      - name: Publish distribution 📦 to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1