Add a release.yml workflow

.github/workflows/release.yml

@@ -0,0 +1,24 @@
+name: Release
+
+on: ["workflow_dispatch"]
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      # IMPORTANT: this permission is mandatory for trusted publishing
+      id-token: write
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+    - name: Build
+      run: pipx run build .
+    - name: Publish
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        skip-existing: true