CI : runs on image that integrate PHP and composer

.forgejo/workflows/deploy.yml

@@ -9,16 +9,18 @@ jobs:
   deploy:
     name: Deploy to Production
     runs-on: docker
+    container:
+      image: composer:latest
     steps:
-      - name: Install dependencies
-        run: |
-          composer install
-
       - name: Checkout code
         run: |
           git clone --depth 1 --branch main https://forge.studio-variable.com/${{ github.repository }}.git .
           ls -la
 
+      - name: Install dependencies
+        run: |
+          composer install --no-dev --optimize-autoloader
+
       - name: Deploy via FTP
         env:
           USERNAME: ${{ secrets.USERNAME }}