Update node and npm in docker.

Author: bgrozev

.github/workflows/publish-to-gh-pages.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
 
       - name: Install dependencies

Dockerfile

@@ -1,8 +1,11 @@
 # Build stage
-from node:18-alpine as build
+from node:20-alpine as build
 
 workdir /app
 
+# Update npm to latest version
+run npm install -g npm@latest
+
 # Copy package files
 copy package*.json ./