ci: use trusted publishers and sign releases (#254)

Signed-off-by: Michele Dolfi <[email protected]>

Author: dolfim-ibm

.github/workflows/pypi.yml

@@ -14,8 +14,17 @@ env:
 jobs:
   build-and-publish:
     runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/docling-core
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/setup-poetry
       - name: Build and publish
-        run: poetry publish --build --no-interaction --username=__token__ --password=${{ secrets.PYPI_TOKEN }}
+        run: poetry publish build
+      - name: Publish distribution 📦 to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          attestations: true