CI-CD: action should use yarn instead of npm

.github/workflows/deploy_to_gh_pages.yml

@@ -6,9 +6,6 @@ on:
   push:
     branches: ['main']
 
-  # Allows you to run this workflow manually from the Actions tab
-  workflow_dispatch:
-
 # Sets the GITHUB_TOKEN permissions to allow deployment to GitHub Pages
 permissions:
   contents: read
@@ -30,22 +27,27 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
       - name: Set up Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: 18
-          cache: 'npm'
-      - name: Install dependencies
-        run: npm install
-      - name: Build
-        run: npm run build
+          node-version: 21
+
+      - name: Run yarn install
+        run: yarn
+
+      - name: Run yarn build
+        run: yarn build
+
       - name: Setup Pages
         uses: actions/configure-pages@v3
+
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v2
         with:
           # Upload dist repository
           path: './dist'
+
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v2