Refactor CI configuration to improve publish step and ensure Node.js setup

Author: HichemTab-tech

.github/workflows/ci.yml

@@ -25,9 +25,20 @@ jobs:
       if: runner.os == 'Linux'
     - run: pnpm test
       if: runner.os != 'Linux'
-    - name: Publish
-      if: success() && startsWith(github.ref, 'refs/tags/') && matrix.os == 'ubuntu-latest'
-      run: pnpm run deploy
-      env:
-        VSCE_PAT: ${{ secrets.VSCE_PAT }}
-    
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 23.x
+      - run: npm -g install pnpm@latest
+      - run: pnpm install
+      - name: Publish
+        if: startsWith(github.ref, 'refs/tags/')
+        run: pnpm run deploy
+        env:
+          VSCE_PAT: ${{ secrets.VSCE_PAT }}