Modernize PyPI publishing

- Use Trusted Publishers
- Do not use "master" version of the GitHub action

.github/workflows/publish.yml

@@ -6,9 +6,14 @@ name: Publish Python distributions to PyPI and TestPyPI
 on: push
 
 jobs:
-  build-n-publish:
+  release:
     name: Build and publish Python distributions to PyPI and TestPyPI
     runs-on: ubuntu-latest
+    permissions:
+      id-token: write # IMPORTANT: this permission is mandatory for trusted publishing
+    environment:
+      name: pypi
+      url: https://pypi.org/project/fastapi-poe/
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python 3.10
@@ -23,6 +28,4 @@ jobs:
           python -m build --sdist --wheel --outdir dist/ .
       - name: Publish distribution to PyPI
         if: startsWith(github.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@master
-        with:
-          password: ${{ secrets.PYPI_API_TOKEN }}
+        uses: pypa/gh-action-pypi-publish@release/v1