feat(deno): deploy from CI

.github/workflows/deploy.yml

@@ -0,0 +1,20 @@
+name: Deploy to GitHub Pages
+on:
+  push:
+    branches:
+      - main
+      - deno
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+      - run: make build
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dist

.github/workflows/on-pull-request.yml

@@ -1,16 +1,13 @@
 name: On Pull Requests
 on:
-  push:
-    branches:
-      - deno
   pull_request:
     branches:
       - main
 jobs:
   quality-checks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: denoland/setup-deno@v2
         with:
           deno-version: v2.x