add github workflow to upload build to pypi

.github/workflows/pypi.yaml

@@ -0,0 +1,40 @@
+jobs:
+  release-build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: build release distributions
+        run: |
+          python setup.py build
+
+      - name: upload build
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-build
+          path: build/
+
+  pypi-publish:
+    runs-on: ubuntu-latest
+    needs:
+      - release-build
+    environment:
+      name: pypi
+      url: https://pypi.org/p/wespe
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Retrieve release build
+        uses: actions/download-artifact@v4
+        with:
+          name: release-build
+          path: build/
+
+      - name: Publish release build to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1