GHA: Add workflow to build release assets

Author: dalcinl

.github/workflows/release.yml

@@ -0,0 +1,45 @@
+name: cd-sdist
+
+permissions:
+  contents: read
+
+on:
+  workflow_dispatch:
+
+jobs:
+
+  sdist:
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3
+
+    - name: Upgrade pip
+      run:  python -m pip install -U pip
+
+    - name: Install build and twine
+      run:  python -m pip install -U build twine
+
+    - name: Build distribution
+      run:  python -m build
+
+    - name: Check source distribution
+      run:  python -m twine check dist/pyspod-*.tar.gz
+
+    - name: Check binary distribution
+      run:  python -m twine check dist/pyspod-*.whl
+
+    - name: Upload source distributionx
+      uses: actions/upload-artifact@v3
+      with:
+        name: release
+        path: |
+          dist/*.tar.gz
+          dist/*.whl