fix: workflow npm

Author: adrianschubek

.github/workflows/docs.yml

@@ -39,12 +39,12 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 18
-          cache: yarn
+          cache: npm
 
       - name: Install dependencies
-        run: yarn install
+        run: npm ci
       - name: Build website
-        run: yarn build
+        run: npm build
 
       - name: Upload Build Artifact
         uses: actions/upload-pages-artifact@v3