chore: update workflow to use official Astro action and configure site URL

Author: rmbrntt

.github/workflows/deploy.yml

@@ -16,45 +16,12 @@ jobs:
     steps:
       - name: Checkout your repository using git
         uses: actions/checkout@v4
-
-      - name: Setup PNPM
-        uses: pnpm/action-setup@v2
-        with:
-          version: 8
-
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          cache: "pnpm"
-          cache-dependency-path: "./site/pnpm-lock.yaml"
-
-      - name: Install dependencies
-        working-directory: ./site
-        run: pnpm install
-
-      - name: Build site
-        working-directory: ./site
-        run: |
-          pnpm build
-          echo "Build complete. Checking dist directory:"
-          ls -la dist/
-
-      - name: Debug directory structure
-        run: |
-          echo "Current directory structure:"
-          ls -R ./site/dist/
-
-      - name: Create artifact directory
-        run: |
-          mkdir -p ./_site
-          cp -r ./site/dist/* ./_site/
-
-      - name: Upload Pages artifact
-        uses: actions/upload-pages-artifact@v3
+      - name: Install, build, and upload your site
+        uses: withastro/action@v3
         with:
-          name: github-pages
-          path: ./_site
+          path: ./site # The root location of your Astro project inside the repository
+          node-version: 20 # The specific version of Node that should be used to build your site
+          package-manager: pnpm@latest # Use pnpm as the package manager
 
   deploy:
     needs: build
@@ -65,6 +32,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
-        with:
-          artifact_name: github-pages
+        uses: actions/deploy-pages@v4

site/astro.config.mjs

@@ -14,6 +14,7 @@ import { tags } from "./src/markdoc/tags";
 
 // https://astro.build/config
 export default defineConfig({
+  site: "https://rmbrntt.github.io",
   integrations: [
     tailwind({
       applyBaseStyles: false,