feat: adhere to PEP 517 (#213)

* feat: adhere to PEP 517

Use the modern PEP 517 build system.

https://peps.python.org/pep-0517/

* ci: build package using build

.github/workflows/release.yml

@@ -9,18 +9,22 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
           python-version: "3.x"
+
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install setuptools wheel twine
-      - name: Build and publish
+          pip install --upgrade pip
+          pip install --upgrade build twine
+
+      - name: Build
+        run: python3 -m build
+
+      - name: Publish
         env:
           TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
           TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
-        run: |
-          python setup.py sdist bdist_wheel
-          twine upload dist/*
+        run: twine upload dist/*

pyproject.toml

@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"