Add a deploy action

.github/workflows/publish.yml

@@ -0,0 +1,42 @@
+name: Publish
+
+on:
+  workflow_run:
+    workflows: ["CI"]
+    types:
+      - completed
+    branches:
+      - main
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  publish:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: website
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: stable
+          targets: wasm32-unknown-unknown
+      - uses: jetli/trunk-action@v0.4.0
+      - uses: taiki-e/install-action@v2
+        with:
+          tool: just@1.5.0,zola@0.18.0
+
+      - name: Configure Git
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+
+      - name: Deploy
+        run: just deploy