better workflow, imagemagick is V6 in ubuntu latest

.gitea/workflows/main.yaml

@@ -18,39 +18,31 @@ jobs:
         username: ${{ VARS.USER }}
         password: ${{ secrets.TOKEN }}
 
-    # --- ADDED: Step to generate image assets before the build ---
     - name: Generate Static Image Assets
-      run: |
-        # Install dependencies required by the scripts
-        sudo apt-get update && sudo apt-get install -y imagemagick webp
+      uses: add-actions/run-in-container@v1
+      with:
+        image: archlinux:latest
+        run: |
+          pacman -Syu --noconfirm imagemagick webp ghostscript
+          chmod +x ./scripts/*.sh
+          bash ./scripts/first_page_image.sh
+          bash ./scripts/generate_webp.sh
 
-        # Make scripts executable
-        chmod +x ./scripts/*.sh
-        
-        # Run the scripts to generate PNGs from PDFs and create WebP images
-        echo "Generating PNGs from PDFs..."
-        bash ./scripts/first_page_image.sh
-        echo "Generating WebP images..."
-        bash ./scripts/generate_webp.sh
-
-    # --- REPLACED: The following steps are changed from Ruby/Jekyll to Node.js/Next.js ---
     - name: Set up Node.js
       uses: actions/setup-node@v4
       with:
-        node-version: '20.x' # Use a current LTS version of Node.js
+        node-version: '20.x'
         cache: 'npm'
         
     - name: Install Node.js Dependencies
-      run: npm ci # 'npm ci' is recommended for CI for faster, reliable installs
+      run: npm ci
 
     - name: Build Next.js App
       run: npm run build
-    # --- END OF REPLACED STEPS ---
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
 
-    # --- UNCHANGED: This step remains the same as requested ---
     - name: Build and push
       uses: docker/build-push-action@v5
       with: