Update github workflow and package.json

Author: gnmyt

.github/workflows/upload_docs.yml

@@ -12,20 +12,16 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: pnpm/action-setup@v4
-        with:
-          version: 9
-
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: pnpm
+          cache: npm
 
       - name: Install dependencies
-        run: pnpm install
+        run: npm ci
 
       - name: Build documentation
-        run: pnpm vitepress build docs
+        run: npx vitepress build docs
 
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v4