Update Node.js version from 20 to 25

Author: uNetworkingAB

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 25
       - name: Update binaries
         run: |
           git clone --recursive https://github.com/uNetworking/uWebSockets.js.git