Mise à jour du workflow de déploiement GitHub Actions

- Configuration de Node.js version 20 avec pnpm
- Ajout d'étapes pour installer les dépendances et construire l'application Astro
- Mise en place du téléchargement de l'artefact de build

Author: aliou-ka

.github/workflows/deploy.yml

@@ -20,8 +20,29 @@ jobs:
     steps:
       - name: Checkout your repository using git
         uses: actions/checkout@v4
-      - name: Install, build, and upload your site
-        uses: withastro/action@v3
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'pnpm'
+
+      - name: Install pnpm
+        run: npm install -g pnpm
+
+      - name: Install dependencies
+        run: |
+          rm -rf node_modules dist .astro pnpm-lock.yaml
+          pnpm install
+
+      - name: Build Astro app
+        run: pnpm run build
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: astro-dist
+          path: dist
+
         # with:
           # path: . # The root location of your Astro project inside the repository. (optional)
           # node-version: 20 # The specific version of Node that should be used to build your site. Defaults to 20. (optional)