fix: yarn version for docs build

.github/workflows/docs.yml

@@ -36,11 +36,25 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - name: Setup Node
+      - name: Setup target Node.js to enable Corepack
         uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: yarn
+      - run: |
+          corepack enable
+          yarn -v
+      - name: Install Node.js, NPM and Yarn
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'yarn'
+      - run: |
+          yarn -v
+      # - name: Setup Node
+      #   uses: actions/setup-node@v4
+      #   with:
+      #     node-version: 20
+      #     cache: yarn
       - name: Setup Pages
         uses: actions/configure-pages@v4
       - name: Install dependencies