Add release workflow

.github/workflows/example-plugin.yml

@@ -6,7 +6,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - name: Checkout
+        uses: actions/checkout@v6
         with:
           submodules: true
       - name: Set up Python

.github/workflows/release.yml

@@ -0,0 +1,46 @@
+name: Release
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  release:
+    name: Build and release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          submodules: true
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+
+      - name: Install `build` from pip
+        run: pip install build
+
+      - name: Build
+        run: python -m build
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          path: dist/pumpkin_api_py*
+
+      - name: Upload artifacts to release
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ github.ref }}
+          file: dist/pumpkin_api_py*
+          overwrite: true
+          file_glob: true