Add GitHub actions job to generate a release

Author: quantum5

.github/workflows/build.yml

@@ -31,3 +31,17 @@ jobs:
         with:
           name: Python ${{ matrix.python-version }} (${{ matrix.arch }})
           path: python*.tar.gz
+  release:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v2
+      - name: Upload binaries to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: '*/python*.tar.gz'
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true