Deploy site to GitHub pages (#340)

Author: calda

.github/workflows/main.yml

@@ -42,7 +42,7 @@ jobs:
         run: swift test
 
   site-build:
-    name: Site Build
+    name: Build Site
     runs-on: macos-15
     steps:
       - uses: actions/checkout@v6

.github/workflows/site.yml

@@ -0,0 +1,51 @@
+name: Deploy Site to GitHub Pages
+
+on:
+  push:
+    branches: [ master ]
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Build site
+        run: bundle exec rake site:build
+        env:
+          JEKYLL_ENV: production
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: _site
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4